Linux::debian: Difference between revisions
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== typical sysctl setup for server == | == typical sysctl setup for server == | ||
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vm.vfs_cache_pressure = 100 | vm.vfs_cache_pressure = 100 | ||
vm.zone_reclaim_mode = 0 | vm.zone_reclaim_mode = 0 | ||
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== typical sysctl setup for firewall == | == typical sysctl setup for firewall == | ||
Revision as of 16:28, 15 August 2016
Backporting
A good guide to backporting is at
https://raphaelhertzog.com/2010/12/15/howto-to-rebuild-debian-packages/
A deb-src line in sources.list for unstable is needed to do:
apt-get source libsane-common/unstable
Then:
apt-get build-deps libsane-common/unstable
should get the dependencies from stable to build libsane-common and libsane.
firefox custom alternatives
update-alternatives --install /etc/alternatives/firefox x-www-browser /opt/custom/firefox/firefox 300 update-alternatives --set x-www-browser /opt/custom/firefox/firefox
Configurations
Some notes on kernel configuration options (linux 3.3.8) with some notes about intel splash on a intel chipset notebook. Most of the following is a server setup on AMD though.
CPU Frequency
Set min / max values
create file if not existing
/etc/default/cpufrequtils
define min/max value and governor
GOVERNOR="ondemand" MAX_SPEED="3.6GHz" MIN_SPEED="1.4GHz"
Kernel Configuration
┌───────────────────────────────────────────── General setup ──────────────────────────────────────────────┐ ... │ ┌──────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ [*] Prompt for development and/or incomplete code/drivers │ │ │ │ () Cross-compiler tool prefix │ │ │ │ (eko4) Local version - append to kernel release │ │ │ │ [*] Automatically append version information to the version string │ │ │ │ Kernel compression mode (Gzip) ---> │ │ │ │ ((none)) Default hostname │ │ │ │ [*] Support for paging of anonymous memory (swap) │ │ │ │ [*] System V IPC │ │ │ │ [*] POSIX Message Queues │ │ │ │ [*] BSD Process Accounting │ │ │ │ [ ] BSD Process Accounting version 3 file format │ │ │ │ [*] open by fhandle syscalls │ │ │ │ [ ] Export task/process statistics through netlink (EXPERIMENTAL) │ │ │ │ [*] Auditing support │ │ │ │ [*] Enable system-call auditing support │ │ │ │ [ ] Make audit loginuid immutable │ │ │ │ IRQ subsystem ---> │ │ │ │ RCU Subsystem ---> │ │ │ │ < > Kernel .config support │ │ │ │ (15) Kernel log buffer size (16 => 64KB, 17 => 128KB) │ │ │ │ [ ] Control Group support ---> │ │ │ │ -*- Namespaces support ---> │ │ │ │ [ ] Automatic process group scheduling │ │ │ │ [*] Enable deprecated sysfs features to support old userspace tools │ │ │ │ [ ] Enable deprecated sysfs features by default │ │ │ │ -*- Kernel->user space relay support (formerly relayfs) │ │ │ │ [*] Initial RAM filesystem and RAM disk (initramfs/initrd) support │ │ │ │ () Initramfs source file(s) │ │ │ │ [*] Optimize for size │ │ │ │ [ ] Configure standard kernel features (expert users) ---> │ │ │ │ [ ] Embedded system │ │ │ │ Kernel Performance Events And Counters ---> │ │ │ │ [ ] Disable heap randomization │ │ │ │ Choose SLAB allocator (SLAB) ---> │ │ │ │ [ ] Profiling support │ │ │ │ [ ] Kprobes │ │ │ │ [ ] Optimize trace point call sites │ │ │ │ GCOV-based kernel profiling ---> │ │ ...
┌───────────────────────────────────────────── RCU Subsystem ──────────────────────────────────────────────┐ ... │ ┌──────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ RCU Implementation (Tree-based hierarchical RCU) ---> │ │ │ │ [ ] Enable tracing for RCU │ │ │ │ (32) Tree-based hierarchical RCU fanout value │ │ │ │ [ ] Disable tree-based hierarchical RCU auto-balancing │ │ │ │ [ ] Accelerate last non-dyntick-idle CPU's grace periods │ │ │ │ │ │
┌─────────────────────────────────────────── Namespaces support ───────────────────────────────────────────┐ ... │ ┌──────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ --- Namespaces support │ │ │ │ [*] UTS namespace │ │ │ │ [*] IPC namespace │ │ │ │ [ ] User namespace (EXPERIMENTAL) │ │ │ │ [*] PID Namespaces │ │ │ │ [*] Network namespace │ │
┌───────────────────────────────────── Enable loadable module support ─────────────────────────────────────┐ ... │ ┌──────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ --- Enable loadable module support │ │ │ │ [ ] Forced module loading │ │ │ │ [*] Module unloading │ │ │ │ [*] Forced module unloading │ │ │ │ [*] Module versioning support │ │ │ │ [ ] Source checksum for all modules │ │
┌───────────────────────────────────────── Enable the block layer ─────────────────────────────────────────┐ ... │ ┌──────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ --- Enable the block layer │ │ │ │ -*- Block layer SG support v4 │ │ │ │ -*- Block layer SG support v4 helper lib │ │ │ │ [ ] Block layer data integrity support │ │ │ │ Partition Types ---> │ │ │ │ IO Schedulers ---> │ │
┌───────────────────────────────────────────── IO Schedulers ──────────────────────────────────────────────┐ ... │ ┌──────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ < > Deadline I/O scheduler │ │ │ │ <*> CFQ I/O scheduler │ │ │ │ Default I/O scheduler (CFQ) ---> │ │ │ │ │ │
┌────────────────────────────────────── Processor type and features ───────────────────────────────────────┐ ... │ ┌──────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ [*] Tickless System (Dynamic Ticks) │ │ │ │ [*] High Resolution Timer Support │ │ │ │ [*] Symmetric multi-processing support │ │ │ │ [*] Enable MPS table │ │ │ │ [ ] Support for extended (non-PC) x86 platforms │ │ │ │ [*] Single-depth WCHAN output │ │ │ │ [ ] Paravirtualized guest support ---> │ │ │ │ [ ] Memtest │ │ │ │ Processor family (Generic-x86-64) ---> │ │ │ │ [ ] IBM Calgary IOMMU support │ │ │ │ [ ] Enable Maximum number of SMP Processors and NUMA Nodes │ │ │ │ (8) Maximum number of CPUs │ │ │ │ [ ] SMT (Hyperthreading) scheduler support │ │ │ │ [*] Multi-core scheduler support │ │ │ │ [ ] Fine granularity task level IRQ time accounting │ │ │ │ Preemption Model (Voluntary Kernel Preemption (Desktop)) ---> │ │ │ │ [*] Reroute for broken boot IRQs │ │ │ │ [*] Machine Check / overheating reporting │ │ │ │ [*] Intel MCE features │ │ │ │ [*] AMD MCE features │ │ │ │ <M> Machine check injector support │ │ │ │ < > Dell laptop support │ │ │ │ <M> /dev/cpu/microcode - microcode support │ │ │ │ [*] Intel microcode patch loading support │ │ │ │ [*] AMD microcode patch loading support │ │ │ │ <M> /dev/cpu/*/msr - Model-specific register support │ │ │ │ <M> /dev/cpu/*/cpuid - CPU information support │ │ │ │ [ ] Numa Memory Allocation and Scheduler Support │ │ │ │ Memory model (Sparse Memory) ---> │ │ │ │ [*] Sparse Memory virtual memmap │ │ │ │ [ ] Allow for memory hot-add │ │ │ │ -*- Allow for memory compaction │ │ │ │ -*- Page migration │ │ │ │ [ ] Enable KSM for page merging │ │ │ │ (65536) Low address space to protect from user allocation │ │ │ │ [ ] Enable recovery from hardware memory errors │ │ │ │ [*] Transparent Hugepage Support │ │ │ │ Transparent Hugepage Support sysfs defaults (always) ---> │ │ │ │ [*] Enable cleancache driver to cache clean pages if tmem is present │ │ │ │ [*] Check for low memory corruption │ │ │ │ [ ] Set the default setting of memory_corruption_check │ │ │ │ (64) Amount of low memory, in kilobytes, to reserve for the BIOS │ │ │ │ -*- MTRR (Memory Type Range Register) support │ │ │ │ [*] MTRR cleanup support │ │ │ │ (0) MTRR cleanup enable value (0-1) │ │ │ │ (1) MTRR cleanup spare reg num (0-7) │ │ │ │ [ ] EFI runtime service support │ │ │ │ [*] Enable seccomp to safely compute untrusted bytecode │ │ │ │ [ ] Enable -fstack-protector buffer overflow detection (EXPERIMENTAL) │ │ │ │ Timer frequency (300 HZ) ---> │ │ │ │ [ ] kexec system call │ │ │ │ [ ] kernel crash dumps │ │ │ │ [ ] Build a relocatable kernel │ │ │ │ -*- Support for hot-pluggable CPUs │ │ │ │ [ ] Compat VDSO support │ │ │ │ [ ] Built-in kernel command line │ │
┌─────────────────────────────────── Power management and ACPI options ────────────────────────────────────┐ ... │ ┌──────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ [*] Suspend to RAM and standby │ │ │ │ [*] Hibernation (aka 'suspend to disk') │ │ │ │ (/dev/md4) Default resume partition │ │ │ │ [*] Run-time PM core functionality │ │ │ │ [ ] Power Management Debug Support │ │ │ │ [*] ACPI (Advanced Configuration and Power Interface) Support ---> │ │ │ │ [ ] SFI (Simple Firmware Interface) Support ---> │ │ │ │ CPU Frequency scaling ---> │ │ │ │ -*- CPU idle PM support │ │ │ │ [ ] Cpuidle Driver for Intel Processors │ │ │ │ Memory power savings ---> │ │ │ │ │ │
┌─────────────────────── ACPI (Advanced Configuration and Power Interface) Support ────────────────────────┐
...
│ │
│ ┌──────────────────────────────────────────────────────────────────────────────────────────────────────┐ │
│ │ --- ACPI (Advanced Configuration and Power Interface) Support │ │
│ │ [ ] Deprecated /proc/acpi files │ │
│ │ [ ] Deprecated power /proc/acpi directories │ │
│ │ < > EC read/write access through /sys/kernel/debug/ec │ │
│ │ [ ] Deprecated /proc/acpi/event support │ │
│ │ <M> AC Adapter │ │
│ │ <M> Battery │ │
│ │ <M> Button │ │
│ │ <M> Video │ │
│ │ <M> Fan │ │
│ │ [ ] Dock │ │
│ │ <M> Processor │ │
│ │ <M> Processor Aggregator │ │
│ │ <M> Thermal Zone │ │
│ │ [ ] Debug Statements │ │
│ │ < > PCI slot detection driver │ │
│ │ {M} Container and Module Devices (EXPERIMENTAL) │ │
│ │ <M> Smart Battery System │ │
│ │ -*- Hardware Error Device │ │
│ │ <M> Allow ACPI methods to be inserted/replaced at run time │ │
│ │ [*] ACPI Platform Error Interface (APEI) │ │
│ │ [*] APEI Generic Hardware Error Source │ │
│ │ < > APEI Error INJection (EINJ) │ │
│ │ < > APEI Error Record Serialization Table (ERST) Debug Support │ │
│ └──────────────────────────────────────────────────────────────────────────────────────────────────────┘ │
┌───────────────────────────────────────── CPU Frequency scaling ──────────────────────────────────────────┐ ... │ ┌──────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ [*] CPU Frequency scaling │ │ │ │ <M> CPU frequency translation statistics │ │ │ │ [*] CPU frequency translation statistics details │ │ │ │ Default CPUFreq governor (userspace) ---> │ │ │ │ <M> 'performance' governor │ │ │ │ <M> 'powersave' governor │ │ │ │ -*- 'userspace' governor for userspace frequency scaling │ │ │ │ <M> 'ondemand' cpufreq policy governor │ │ │ │ <M> 'conservative' cpufreq governor │ │ │ │ x86 CPU frequency scaling drivers ---> │ │ │ │ │ │
┌─────────────────────────────────── x86 CPU frequency scaling drivers ────────────────────────────────────┐ ... │ ┌──────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ <M> Processor Clocking Control interface driver │ │ │ │ <M> ACPI Processor P-States driver │ │ │ │ <M> AMD Opteron/Athlon64 PowerNow! │ │ │ │ < > Intel Enhanced SpeedStep (deprecated) │ │ │ │ < > Intel Pentium 4 clock modulation │ │ │ │ *** shared options *** │ │ │ │ │ │
┌───────────────────────────────────────── Bus options (PCI etc.) ─────────────────────────────────────────┐ ... │ ┌──────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ [*] PCI support │ │ │ │ [*] Support mmconfig PCI config space access │ │ │ │ [*] PCI Express support │ │ │ │ [ ] Root Port Advanced Error Reporting support │ │ │ │ -*- PCI Express ASPM control │ │ │ │ [ ] Debug PCI Express ASPM │ │ │ │ [*] Message Signaled Interrupts (MSI and MSI-X) │ │ │ │ [ ] PCI Debugging │ │ │ │ < > PCI Stub driver │ │ │ │ [*] Interrupts on hypertransport devices │ │ │ │ [ ] PCI IOV support │ │ │ │ [ ] PCI PRI support │ │ │ │ [ ] PCI PASID support │ │ │ │ <*> PCI IO-APIC hotplug support │ │ │ │ < > PCCard (PCMCIA/CardBus) support ---> │ │ │ │ < > Support for PCI Hotplug ---> │ │ │ │ [ ] RapidIO support │ │ │ │ │ │
┌──────────────────────────────────────────── Graphics support ────────────────────────────────────────────┐
...
│ ┌──────────────────────────────────────────────────────────────────────────────────────────────────────┐ │
│ │ < > /dev/agpgart (AGP Support) ---> │ │
│ │ -*- VGA Arbitration │ │
│ │ (2) Maximum number of GPUs │ │
│ │ [*] Laptop Hybrid Graphics - GPU switching support │ │
│ │ <M> Direct Rendering Manager (XFree86 4.1.0 and higher DRI support) ---> │ │
│ │ < > Intel GMA500 Stub Driver │ │
│ │ <M> Lowlevel video output switch controls │ │
│ │ {*} Support for frame buffer devices ---> │ │
│ │ -*- Backlight & LCD device support ---> │ │
│ │ Console display driver support ---> │ │
│ │ [*] Bootup logo ---> │ │
│ │ │ │
server intel chipset
┌──────────────────── Direct Rendering Manager (XFree86 4.1.0 and higher DRI support) ─────────────────────┐ ... │ ┌──────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ --- Direct Rendering Manager (XFree86 4.1.0 and higher DRI support) │ │ │ │ < > 3dfx Banshee/Voodoo3+ │ │ │ │ < > ATI Rage 128 │ │ │ │ < > ATI Radeon │ │ │ │ < > Matrox g200/g400 │ │ │ │ < > Via unichrome video cards │ │ │ │ < > Savage video cards │ │ │ │ <M> DRM driver for VMware Virtual GPU │ │ │ │ <M> Intel GMA5/600 KMS Framebuffer │ │ │ │ [ ] Intel GMA600 support (Experimental) │ │ │ │ [ ] Intel GMA3600/3650 support (Experimental) │ │ │ │ │ │
notebook intel chipset
┌──────────────────── Direct Rendering Manager (XFree86 4.1.0 and higher DRI support) ─────────────────────┐ ... │ ┌──────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ --- Direct Rendering Manager (XFree86 4.1.0 and higher DRI support) │ │ │ │ < > 3dfx Banshee/Voodoo3+ │ │ │ │ < > ATI Rage 128 │ │ │ │ < > ATI Radeon │ │ │ │ <M> Intel 8xx/9xx/G3x/G4x/HD Graphics │ │ │ │ [*] Enable modesetting on intel by default │ │ │ │ < > Matrox g200/g400 │ │ │ │ < > SiS video cards │ │ │ │ < > Via unichrome video cards │ │ │ │ < > Savage video cards │ │ │ │ <M> DRM driver for VMware Virtual GPU │ │ │ │ │ │
notebook intel chipset i915 with splash activ
┌──────────────────────────────────── Support for frame buffer devices ────────────────────────────────────┐ ... │ ┌──────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ --- Support for frame buffer devices │ │ │ │ [ ] Enable firmware EDID │ │ │ │ [ ] Framebuffer foreign endianness support ---> │ │ │ │ -*- Enable Video Mode Handling Helpers │ │ │ │ [ ] Enable Tile Blitting Support │ │ │ │ *** Frame buffer hardware drivers *** │ │ │ │ < > Cirrus Logic support │ │ │ │ < > Permedia2 support │ │ │ │ < > CyberPro 2000/2010/5000 support │ │ │ │ < > Arc Monochrome LCD board support │ │ │ │ [ ] Asiliant (Chips) 69000 display support │ │ │ │ [ ] IMS Twin Turbo display support │ │ │ │ < > VGA 16-color graphics support │ │ │ │ < > Userspace VESA VGA graphics support │ │ │ │ [ ] VESA VGA graphics support │ │ │ │ < > N411 Apollo/Hecuba devkit support │ │ │ │ < > Hercules mono graphics support │ │ │ │ < > Epson S1D13XXX framebuffer support │ │ │ │ < > nVidia Framebuffer Support │ │ │ │ < > nVidia Riva support │ │ │ │ < > Intel LE80578 (Vermilion) support │ │ │ │ < > Matrox acceleration │ │ │ │ < > ATI Radeon display support │ │ │ │ < > ATI Rage128 display support │ │ │ │ < > ATI Mach64 display support │ │ │ │ < > S3 Trio/Virge support │ │ │ │ < > SiS/XGI display support │ │ │ │ < > VIA UniChrome (Pro) and Chrome9 display support │ │ │ │ < > NeoMagic display support │ │ │ │ < > IMG Kyro support │ │ │ │ < > 3Dfx Banshee/Voodoo3/Voodoo5 display support │ │ │ │ < > 3Dfx Voodoo Graphics (sst1) support │ │ │ │ < > VIA VT8623 support │ │ │ │ < > Trident/CyberXXX/CyberBlade support │ │ │ │ < > ARK 2000PV support │ │ │ │ < > Fujitsu carmine frame buffer support │ │ │ │ < > Toshiba Mobile IO FrameBuffer support │ │ │ │ < > Silicon Motion SM501 framebuffer support │ │ │ │ <M> SMSC UFX6000/7000 USB Framebuffer support │ │ │ │ < > Displaylink USB Framebuffer support │ │ │ │ < > Virtual Frame Buffer support (ONLY FOR TESTING!) │ │ │ │ < > E-Ink Metronome/8track controller support │ │ │ │ < > Fujitsu MB862xx GDC support │ │ │ │ < > E-Ink Broadsheet/Epson S1D13521 controller support │ │
┌───────────────────────────────────── Console display driver support ─────────────────────────────────────┐
...
│ ┌──────────────────────────────────────────────────────────────────────────────────────────────────────┐ │
│ │ -*- VGA text console │ │
│ │ [*] Enable Scrollback Buffer in System RAM │ │
│ │ (64) Scrollback Buffer Size (in KB) │ │
│ │ {*} Framebuffer Console support │ │
│ │ -*- Map the console to the primary display device │ │
│ │ [*] Framebuffer Console Rotation │ │
│ │ [*] Select compiled-in fonts │ │
│ │ [ ] VGA 8x8 font │ │
│ │ -*- VGA 8x16 font │ │
│ │ [ ] Mac console 6x11 font (not supported by all drivers) │ │
│ │ [ ] console 7x14 font (not supported by all drivers) │ │
│ │ [ ] Pearl (old m68k) console 8x8 font │ │
│ │ [ ] Acorn console 8x8 font │ │
│ │ [ ] Mini 4x6 font │ │
│ │ [ ] Sparc console 8x16 font │ │
│ │ [ ] Sparc console 12x22 font (not supported by all drivers) │ │
│ │ [ ] console 10x18 font (not supported by all drivers) │ │
server
┌───────────────────────────────────── Console display driver support ─────────────────────────────────────┐
...
│ ┌──────────────────────────────────────────────────────────────────────────────────────────────────────┐ │
│ │ -*- VGA text console │ │
│ │ [ ] Enable Scrollback Buffer in System RAM │ │
│ │ {*} Framebuffer Console support │ │
│ │ -*- Map the console to the primary display device │ │
│ │ [*] Framebuffer Console Rotation │ │
│ │ [*] Select compiled-in fonts │ │
│ │ [ ] VGA 8x8 font │ │
│ │ -*- VGA 8x16 font │ │
│ │ [ ] Mac console 6x11 font (not supported by all drivers) │ │
│ │ [ ] console 7x14 font (not supported by all drivers) │ │
│ │ [ ] Pearl (old m68k) console 8x8 font │ │
│ │ [ ] Acorn console 8x8 font │ │
│ │ [ ] Mini 4x6 font │ │
│ │ [ ] Sparc console 8x16 font │ │
│ │ [ ] Sparc console 12x22 font (not supported by all drivers) │ │
│ │ [ ] console 10x18 font (not supported by all drivers) │ │
│ │ │ │
┌───────────────────────────────────────────── Device Drivers ─────────────────────────────────────────────┐
...
│ ┌────────────────^(-)──────────────────────────────────────────────────────────────────────────────────┐ │
│ │ <M> Sound card support ---> │ │
│ │ [*] HID Devices ---> │ │
│ │ [*] USB support ---> │ │
│ │ < > Ultra Wideband devices (EXPERIMENTAL) ---> │ │
│ │ < > MMC/SD/SDIO card support ---> │ │
│ │ < > Sony MemoryStick card support (EXPERIMENTAL) ---> │ │
│ │ -*- LED Support ---> │ │
│ │ [ ] Accessibility support ---> │ │
│ │ < > InfiniBand support ---> │ │
│ │ [*] EDAC (Error Detection And Correction) reporting ---> │ │
│ │ [*] Real Time Clock ---> │ │
│ │ [*] DMA Engine support ---> │ │
│ │ [ ] Auxiliary Display support ---> │ │
│ │ {M} Userspace I/O drivers ---> │ │
│ │ Virtio drivers ---> │ │
│ │ Microsoft Hyper-V guest support ---> │ │
│ │ [ ] Staging drivers ---> │ │
│ │ [*] X86 Platform Specific Device Drivers ---> │ │
│ │ Hardware Spinlock drivers ---> │ │
│ │ [*] IOMMU Hardware Support ---> │ │
│ │ [ ] Virtualization drivers ---> │ │
│ │ [*] Generic Dynamic Voltage and Frequency Scaling (DVFS) support ---> │ │
┌────────────────────── Generic Dynamic Voltage and Frequency Scaling (DVFS) support ──────────────────────┐ ... │ ┌──────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ --- Generic Dynamic Voltage and Frequency Scaling (DVFS) support │ │ │ │ *** DEVFREQ Governors *** │ │ │ │ [*] Simple Ondemand │ │ │ │ [*] Performance │ │ │ │ [*] Powersave │ │ │ │ [*] Userspace │ │ │ │ *** DEVFREQ Drivers *** │ │ │ │ │ │
┌──────────────────────────────────────────── Library routines ────────────────────────────────────────────┐
...
│ ┌──────────────────────────────────────────────────────────────────────────────────────────────────────┐ │
│ │ {M} CRC-CCITT functions │ │
│ │ {M} CRC16 functions │ │
│ │ <M> CRC calculation for the T10 Data Integrity Field │ │
│ │ {M} CRC ITU-T V.41 functions │ │
│ │ -*- CRC32 functions │ │
│ │ <M> CRC7 functions │ │
│ │ {M} CRC32c (Castagnoli, et al) Cyclic Redundancy-Check │ │
│ │ <M> CRC8 function │ │
│ │ -*- XZ decompression support │ │
│ │ <M> XZ decompressor tester │ │
│ │ [*] Averaging functions │ │
│ │ <M> CORDIC algorithm │ │
│ │ │ │
┌───────────────────────────── Multiple devices driver support (RAID and LVM) ─────────────────────────────┐ ... │ ┌──────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ --- Multiple devices driver support (RAID and LVM) │ │ │ │ <M> RAID support │ │ │ │ <M> Linear (append) mode │ │ │ │ <M> RAID-0 (striping) mode │ │ │ │ <M> RAID-1 (mirroring) mode │ │ │ │ < > RAID-10 (mirrored striping) mode │ │ │ │ <M> RAID-4/RAID-5/RAID-6 mode │ │ │ │ <M> Multipath I/O support │ │ │ │ <M> Faulty test module for MD │ │ │ │ <M> Device mapper support │ │ │ │ [ ] Device mapper debugging support │ │ │ │ <M> Crypt target support │ │ │ │ <M> Snapshot target │ │ │ │ <M> Mirror target │ │ │ │ <M> Zero target │ │ │ │ <M> Multipath target │ │ │ │ < > I/O Path Selector based on the number of in-flight I/Os │ │ │ │ < > I/O Path Selector based on the service time │ │ │ │ │ │
┌─────────────────────────────────────────── I2O device support ───────────────────────────────────────────┐ ... │ ┌──────────────────────────────────────────────────────────────────────────────────────────────────────┐ │ │ │ --- I2O device support │ │ │ │ [*] Enable LCT notification │ │ │ │ [*] Enable Adaptec extensions │ │ │ │ [*] Enable 64-bit DMA │ │ │ │ <M> I2O Configuration support │ │ │ │ [ ] Enable ioctls (OBSOLETE) │ │ │ │ <M> I2O Bus Adapter OSM │ │ │ │ <M> I2O Block OSM │ │ │ │ <M> I2O SCSI OSM │ │ │ │ <M> I2O /proc support │ │
Alternatives
Configure default browser to custom firefox installation
- list:
update-alternatives --list www-browser /usr/bin/lynx.cur /usr/bin/w3m
- install:
sudo update-alternatives --install /etc/alternatives/x-www-browser www-browser /opt/custom/firefox/firefox 1 [sudo] password for <user>: update-alternatives: renaming www-browser link from /usr/bin/www-browser to /etc/alternatives/x-www-browser. <user>@<host>:/home-lisa/emanoil$ update-alternatives --list www-browser /opt/custom/firefox/firefox /usr/bin/lynx.cur /usr/bin/w3m
- set:
sudo update-alternatives --set www-browser /opt/custom/firefox/firefox
Terminal
Size
For anyone that would like to find the terminal window size, which can also be important can use these commands:
Code:
WIDTH=`tput cols` HEIGHT=`tput lines`
Disable nepomuk in KDE4
1. First you have to stop it:
qdbus org.kde.NepomukServer /nepomukserver quit
2. Then disable nepomuk autostart:
sudo mv /usr/share/autostart/nepomukserver.desktop /usr/share/autostart/nepomukserver.desktop.piece-of-crap
3. Remove nepomuk database:
rm -rf .kde/share/apps/nepomuk
SAMBA PDC and Windows 7
http://wiki.ubuntuusers.de/Samba_Server_PDC
Custom kernel users should update sysctl
- create file "/etc/sysctl.d/99-custom.conf" with following content
# https://www.debian.org/releases/jessie/amd64/release-notes/ch-whats-new.en.html#newdistro fs.protected_symlinks = 1
- execute
# sysctl -p /etc/sysctl.d/99-custom.conf
typical sysctl setup for firewall
# sysctl -a | sort | sed -e 's:^: :g' debug.exception-trace = 1 dev.scsi.logging_level = 0 fs.aio-max-nr = 65536 fs.aio-nr = 0 fs.dentry-state = 16136 14816 45 0 0 0 fs.dir-notify-enable = 1 fs.file-max = 24484 fs.file-nr = 424 0 24484 fs.inode-nr = 15744 677 fs.inode-state = 15744 677 0 0 0 0 0 fs.inotify.max_queued_events = 16384 fs.inotify.max_user_instances = 128 fs.inotify.max_user_watches = 8192 fs.lease-break-time = 45 fs.leases-enable = 1 fs.mqueue.msg_max = 10 fs.mqueue.msgsize_max = 8192 fs.mqueue.queues_max = 256 fs.nr_open = 1048576 fs.overflowgid = 65534 fs.overflowuid = 65534 fs.quota.allocated_dquots = 0 fs.quota.cache_hits = 0 fs.quota.drops = 0 fs.quota.free_dquots = 0 fs.quota.lookups = 0 fs.quota.reads = 0 fs.quota.syncs = 18 fs.quota.warnings = 1 fs.quota.writes = 0 fs.suid_dumpable = 0 kernel.acct = 4 2 30 kernel.bootloader_type = 113 kernel.cad_pid = 1 kernel.core_pattern = core kernel.core_uses_pid = 0 kernel.ctrl-alt-del = 0 kernel.domainname = (none) kernel.hostname = fw kernel.hotplug = kernel.hung_task_check_count = 1024 kernel.hung_task_timeout_secs = 120 kernel.hung_task_warnings = 10 kernel.io_delay_type = 0 kernel.keys.maxbytes = 20000 kernel.keys.maxkeys = 200 kernel.keys.root_maxbytes = 20000 kernel.keys.root_maxkeys = 200 kernel.kstack_depth_to_print = 24 kernel.maps_protect = 0 kernel.max_lock_depth = 1024 kernel.modprobe = /sbin/modprobe kernel.msgmax = 8192 kernel.msgmnb = 16384 kernel.msgmni = 492 kernel.ngroups_max = 65536 kernel.nmi_watchdog = 0 kernel.osrelease = 2.6.26.2eko2 kernel.ostype = Linux kernel.overflowgid = 65534 kernel.overflowuid = 65534 kernel.panic = 0 kernel.panic_on_oops = 0 kernel.panic_on_unrecovered_nmi = 0 kernel.pid_max = 32768 kernel.poweroff_cmd = /sbin/poweroff kernel.print-fatal-signals = 0 kernel.printk = 7 4 1 7 kernel.printk_ratelimit = 5 kernel.printk_ratelimit_burst = 10 kernel.pty.max = 4096 kernel.pty.nr = 1 kernel.random.boot_id = 03a98b4a-169f-4d2e-a2ba-5c09bd114360 kernel.random.entropy_avail = 187 kernel.random.poolsize = 4096 kernel.random.read_wakeup_threshold = 64 kernel.random.uuid = cad33b52-7c05-49dd-9242-ed7b9d1ae26a kernel.random.write_wakeup_threshold = 128 kernel.randomize_va_space = 2 kernel.real-root-dev = 0 kernel.sched_compat_yield = 0 kernel.sched_rt_period_us = 1000000 kernel.sched_rt_runtime_us = 950000 kernel.sem = 250 32000 32 128 kernel.shmall = 2097152 kernel.shmmax = 33554432 kernel.shmmni = 4096 kernel.softlockup_thresh = 60 kernel.sysrq = 1 kernel.tainted = 0 kernel.threads-max = 4028 kernel.unknown_nmi_panic = 0 kernel.version = #1 Sun Aug 17 08:24:43 CEST 2008 net.core.dev_weight = 64 net.core.message_burst = 10 net.core.message_cost = 5 net.core.netdev_budget = 300 net.core.netdev_max_backlog = 1000 net.core.optmem_max = 10240 net.core.rmem_default = 109568 net.core.rmem_max = 109568 net.core.somaxconn = 128 net.core.warnings = 1 net.core.wmem_default = 109568 net.core.wmem_max = 109568 net.core.xfrm_acq_expires = 30 net.core.xfrm_aevent_etime = 10 net.core.xfrm_aevent_rseqth = 2 net.core.xfrm_larval_drop = 0 net.ipv4.conf.all.accept_redirects = 0 net.ipv4.conf.all.accept_source_route = 0 net.ipv4.conf.all.arp_accept = 0 net.ipv4.conf.all.arp_announce = 0 net.ipv4.conf.all.arp_filter = 0 net.ipv4.conf.all.arp_ignore = 0 net.ipv4.conf.all.bootp_relay = 0 net.ipv4.conf.all.disable_policy = 0 net.ipv4.conf.all.disable_xfrm = 0 net.ipv4.conf.all.force_igmp_version = 0 net.ipv4.conf.all.forwarding = 1 net.ipv4.conf.all.log_martians = 1 net.ipv4.conf.all.mc_forwarding = 0 net.ipv4.conf.all.medium_id = 0 net.ipv4.conf.all.promote_secondaries = 0 net.ipv4.conf.all.proxy_arp = 0 net.ipv4.conf.all.rp_filter = 1 net.ipv4.conf.all.secure_redirects = 1 net.ipv4.conf.all.send_redirects = 0 net.ipv4.conf.all.shared_media = 1 net.ipv4.conf.all.tag = 0 net.ipv4.conf.default.accept_redirects = 0 net.ipv4.conf.default.accept_source_route = 0 net.ipv4.conf.default.arp_accept = 0 net.ipv4.conf.default.arp_announce = 0 net.ipv4.conf.default.arp_filter = 0 net.ipv4.conf.default.arp_ignore = 0 net.ipv4.conf.default.bootp_relay = 0 net.ipv4.conf.default.disable_policy = 0 net.ipv4.conf.default.disable_xfrm = 0 net.ipv4.conf.default.force_igmp_version = 0 net.ipv4.conf.default.forwarding = 1 net.ipv4.conf.default.log_martians = 1 net.ipv4.conf.default.mc_forwarding = 0 net.ipv4.conf.default.medium_id = 0 net.ipv4.conf.default.promote_secondaries = 0 net.ipv4.conf.default.proxy_arp = 0 net.ipv4.conf.default.rp_filter = 1 net.ipv4.conf.default.secure_redirects = 1 net.ipv4.conf.default.send_redirects = 0 net.ipv4.conf.default.shared_media = 1 net.ipv4.conf.default.tag = 0 net.ipv4.conf.eth0.accept_redirects = 0 net.ipv4.conf.eth0.accept_source_route = 0 net.ipv4.conf.eth0.arp_accept = 0 net.ipv4.conf.eth0.arp_announce = 0 net.ipv4.conf.eth0.arp_filter = 0 net.ipv4.conf.eth0.arp_ignore = 0 net.ipv4.conf.eth0.bootp_relay = 0 net.ipv4.conf.eth0.disable_policy = 0 net.ipv4.conf.eth0.disable_xfrm = 0 net.ipv4.conf.eth0.force_igmp_version = 0 net.ipv4.conf.eth0.forwarding = 1 net.ipv4.conf.eth0.log_martians = 1 net.ipv4.conf.eth0.mc_forwarding = 0 net.ipv4.conf.eth0.medium_id = 0 net.ipv4.conf.eth0.promote_secondaries = 0 net.ipv4.conf.eth0.proxy_arp = 0 net.ipv4.conf.eth0.rp_filter = 1 net.ipv4.conf.eth0.secure_redirects = 1 net.ipv4.conf.eth0.send_redirects = 0 net.ipv4.conf.eth0.shared_media = 1 net.ipv4.conf.eth0.tag = 0 net.ipv4.conf.eth1.accept_redirects = 0 net.ipv4.conf.eth1.accept_source_route = 0 net.ipv4.conf.eth1.arp_accept = 0 net.ipv4.conf.eth1.arp_announce = 0 net.ipv4.conf.eth1.arp_filter = 0 net.ipv4.conf.eth1.arp_ignore = 0 net.ipv4.conf.eth1.bootp_relay = 0 net.ipv4.conf.eth1.disable_policy = 0 net.ipv4.conf.eth1.disable_xfrm = 0 net.ipv4.conf.eth1.force_igmp_version = 0 net.ipv4.conf.eth1.forwarding = 1 net.ipv4.conf.eth1.log_martians = 1 net.ipv4.conf.eth1.mc_forwarding = 0 net.ipv4.conf.eth1.medium_id = 0 net.ipv4.conf.eth1.promote_secondaries = 0 net.ipv4.conf.eth1.proxy_arp = 0 net.ipv4.conf.eth1.rp_filter = 1 net.ipv4.conf.eth1.secure_redirects = 1 net.ipv4.conf.eth1.send_redirects = 0 net.ipv4.conf.eth1.shared_media = 1 net.ipv4.conf.eth1.tag = 0 net.ipv4.conf.eth2.accept_redirects = 0 net.ipv4.conf.eth2.accept_source_route = 0 net.ipv4.conf.eth2.arp_accept = 0 net.ipv4.conf.eth2.arp_announce = 0 net.ipv4.conf.eth2.arp_filter = 0 net.ipv4.conf.eth2.arp_ignore = 0 net.ipv4.conf.eth2.bootp_relay = 0 net.ipv4.conf.eth2.disable_policy = 0 net.ipv4.conf.eth2.disable_xfrm = 0 net.ipv4.conf.eth2.force_igmp_version = 0 net.ipv4.conf.eth2.forwarding = 1 net.ipv4.conf.eth2.log_martians = 1 net.ipv4.conf.eth2.mc_forwarding = 0 net.ipv4.conf.eth2.medium_id = 0 net.ipv4.conf.eth2.promote_secondaries = 0 net.ipv4.conf.eth2.proxy_arp = 0 net.ipv4.conf.eth2.rp_filter = 1 net.ipv4.conf.eth2.secure_redirects = 1 net.ipv4.conf.eth2.send_redirects = 0 net.ipv4.conf.eth2.shared_media = 1 net.ipv4.conf.eth2.tag = 0 net.ipv4.conf.lo.accept_redirects = 0 net.ipv4.conf.lo.accept_source_route = 0 net.ipv4.conf.lo.arp_accept = 0 net.ipv4.conf.lo.arp_announce = 0 net.ipv4.conf.lo.arp_filter = 0 net.ipv4.conf.lo.arp_ignore = 0 net.ipv4.conf.lo.bootp_relay = 0 net.ipv4.conf.lo.disable_policy = 1 net.ipv4.conf.lo.disable_xfrm = 1 net.ipv4.conf.lo.force_igmp_version = 0 net.ipv4.conf.lo.forwarding = 1 net.ipv4.conf.lo.log_martians = 1 net.ipv4.conf.lo.mc_forwarding = 0 net.ipv4.conf.lo.medium_id = 0 net.ipv4.conf.lo.promote_secondaries = 0 net.ipv4.conf.lo.proxy_arp = 0 net.ipv4.conf.lo.rp_filter = 1 net.ipv4.conf.lo.secure_redirects = 1 net.ipv4.conf.lo.send_redirects = 0 net.ipv4.conf.lo.shared_media = 1 net.ipv4.conf.lo.tag = 0 net.ipv4.conf.tun0.accept_redirects = 0 net.ipv4.conf.tun0.accept_source_route = 0 net.ipv4.conf.tun0.arp_accept = 0 net.ipv4.conf.tun0.arp_announce = 0 net.ipv4.conf.tun0.arp_filter = 0 net.ipv4.conf.tun0.arp_ignore = 0 net.ipv4.conf.tun0.bootp_relay = 0 net.ipv4.conf.tun0.disable_policy = 0 net.ipv4.conf.tun0.disable_xfrm = 0 net.ipv4.conf.tun0.force_igmp_version = 0 net.ipv4.conf.tun0.forwarding = 1 net.ipv4.conf.tun0.log_martians = 1 net.ipv4.conf.tun0.mc_forwarding = 0 net.ipv4.conf.tun0.medium_id = 0 net.ipv4.conf.tun0.promote_secondaries = 0 net.ipv4.conf.tun0.proxy_arp = 0 net.ipv4.conf.tun0.rp_filter = 1 net.ipv4.conf.tun0.secure_redirects = 1 net.ipv4.conf.tun0.send_redirects = 0 net.ipv4.conf.tun0.shared_media = 1 net.ipv4.conf.tun0.tag = 0 net.ipv4.icmp_echo_ignore_all = 1 net.ipv4.icmp_echo_ignore_broadcasts = 1 net.ipv4.icmp_errors_use_inbound_ifaddr = 0 net.ipv4.icmp_ignore_bogus_error_responses = 1 net.ipv4.icmp_ratelimit = 250 net.ipv4.icmp_ratemask = 6168 net.ipv4.igmp_max_memberships = 20 net.ipv4.igmp_max_msf = 10 net.ipv4.inet_peer_gc_maxtime = 120 net.ipv4.inet_peer_gc_mintime = 10 net.ipv4.inet_peer_maxttl = 600 net.ipv4.inet_peer_minttl = 120 net.ipv4.inet_peer_threshold = 65664 net.ipv4.ip_default_ttl = 64 net.ipv4.ip_dynaddr = 0 net.ipv4.ip_forward = 1 net.ipv4.ip_local_port_range = 32768 61001 net.ipv4.ip_no_pmtu_disc = 0 net.ipv4.ip_nonlocal_bind = 0 net.ipv4.ipfrag_high_thresh = 262144 net.ipv4.ipfrag_low_thresh = 196608 net.ipv4.ipfrag_max_dist = 64 net.ipv4.ipfrag_secret_interval = 600 net.ipv4.ipfrag_time = 30 net.ipv4.neigh.default.anycast_delay = 100 net.ipv4.neigh.default.app_solicit = 0 net.ipv4.neigh.default.base_reachable_time_ms = 30000 net.ipv4.neigh.default.delay_first_probe_time = 5 net.ipv4.neigh.default.gc_interval = 30 net.ipv4.neigh.default.gc_stale_time = 60 net.ipv4.neigh.default.gc_thresh1 = 128 net.ipv4.neigh.default.gc_thresh2 = 512 net.ipv4.neigh.default.gc_thresh3 = 1024 net.ipv4.neigh.default.locktime = 100 net.ipv4.neigh.default.mcast_solicit = 3 net.ipv4.neigh.default.proxy_delay = 80 net.ipv4.neigh.default.proxy_qlen = 64 net.ipv4.neigh.default.retrans_time_ms = 1000 net.ipv4.neigh.default.ucast_solicit = 3 net.ipv4.neigh.default.unres_qlen = 3 net.ipv4.neigh.eth0.anycast_delay = 100 net.ipv4.neigh.eth0.app_solicit = 0 net.ipv4.neigh.eth0.base_reachable_time_ms = 30000 net.ipv4.neigh.eth0.delay_first_probe_time = 5 net.ipv4.neigh.eth0.gc_stale_time = 60 net.ipv4.neigh.eth0.locktime = 100 net.ipv4.neigh.eth0.mcast_solicit = 3 net.ipv4.neigh.eth0.proxy_delay = 80 net.ipv4.neigh.eth0.proxy_qlen = 64 net.ipv4.neigh.eth0.retrans_time_ms = 1000 net.ipv4.neigh.eth0.ucast_solicit = 3 net.ipv4.neigh.eth0.unres_qlen = 3 net.ipv4.neigh.eth1.anycast_delay = 100 net.ipv4.neigh.eth1.app_solicit = 0 net.ipv4.neigh.eth1.base_reachable_time_ms = 30000 net.ipv4.neigh.eth1.delay_first_probe_time = 5 net.ipv4.neigh.eth1.gc_stale_time = 60 net.ipv4.neigh.eth1.locktime = 100 net.ipv4.neigh.eth1.mcast_solicit = 3 net.ipv4.neigh.eth1.proxy_delay = 80 net.ipv4.neigh.eth1.proxy_qlen = 64 net.ipv4.neigh.eth1.retrans_time_ms = 1000 net.ipv4.neigh.eth1.ucast_solicit = 3 net.ipv4.neigh.eth1.unres_qlen = 3 net.ipv4.neigh.eth2.anycast_delay = 100 net.ipv4.neigh.eth2.app_solicit = 0 net.ipv4.neigh.eth2.base_reachable_time_ms = 30000 net.ipv4.neigh.eth2.delay_first_probe_time = 5 net.ipv4.neigh.eth2.gc_stale_time = 60 net.ipv4.neigh.eth2.locktime = 100 net.ipv4.neigh.eth2.mcast_solicit = 3 net.ipv4.neigh.eth2.proxy_delay = 80 net.ipv4.neigh.eth2.proxy_qlen = 64 net.ipv4.neigh.eth2.retrans_time_ms = 1000 net.ipv4.neigh.eth2.ucast_solicit = 3 net.ipv4.neigh.eth2.unres_qlen = 3 net.ipv4.neigh.lo.anycast_delay = 100 net.ipv4.neigh.lo.app_solicit = 0 net.ipv4.neigh.lo.base_reachable_time_ms = 30000 net.ipv4.neigh.lo.delay_first_probe_time = 5 net.ipv4.neigh.lo.gc_stale_time = 60 net.ipv4.neigh.lo.locktime = 100 net.ipv4.neigh.lo.mcast_solicit = 3 net.ipv4.neigh.lo.proxy_delay = 80 net.ipv4.neigh.lo.proxy_qlen = 64 net.ipv4.neigh.lo.retrans_time_ms = 1000 net.ipv4.neigh.lo.ucast_solicit = 3 net.ipv4.neigh.lo.unres_qlen = 3 net.ipv4.neigh.tun0.anycast_delay = 100 net.ipv4.neigh.tun0.app_solicit = 0 net.ipv4.neigh.tun0.base_reachable_time_ms = 30000 net.ipv4.neigh.tun0.delay_first_probe_time = 5 net.ipv4.neigh.tun0.gc_stale_time = 60 net.ipv4.neigh.tun0.locktime = 100 net.ipv4.neigh.tun0.mcast_solicit = 3 net.ipv4.neigh.tun0.proxy_delay = 80 net.ipv4.neigh.tun0.proxy_qlen = 64 net.ipv4.neigh.tun0.retrans_time_ms = 1000 net.ipv4.neigh.tun0.ucast_solicit = 3 net.ipv4.neigh.tun0.unres_qlen = 3 net.ipv4.netfilter.ip_conntrack_buckets = 4096 net.ipv4.netfilter.ip_conntrack_checksum = 1 net.ipv4.netfilter.ip_conntrack_count = 285 net.ipv4.netfilter.ip_conntrack_generic_timeout = 600 net.ipv4.netfilter.ip_conntrack_icmp_timeout = 30 net.ipv4.netfilter.ip_conntrack_log_invalid = 0 net.ipv4.netfilter.ip_conntrack_max = 16384 net.ipv4.netfilter.ip_conntrack_tcp_be_liberal = 0 net.ipv4.netfilter.ip_conntrack_tcp_loose = 1 net.ipv4.netfilter.ip_conntrack_tcp_max_retrans = 3 net.ipv4.netfilter.ip_conntrack_tcp_timeout_close = 10 net.ipv4.netfilter.ip_conntrack_tcp_timeout_close_wait = 60 net.ipv4.netfilter.ip_conntrack_tcp_timeout_established = 432000 net.ipv4.netfilter.ip_conntrack_tcp_timeout_fin_wait = 120 net.ipv4.netfilter.ip_conntrack_tcp_timeout_last_ack = 30 net.ipv4.netfilter.ip_conntrack_tcp_timeout_max_retrans = 300 net.ipv4.netfilter.ip_conntrack_tcp_timeout_syn_recv = 60 net.ipv4.netfilter.ip_conntrack_tcp_timeout_syn_sent = 120 net.ipv4.netfilter.ip_conntrack_tcp_timeout_time_wait = 120 net.ipv4.netfilter.ip_conntrack_udp_timeout = 30 net.ipv4.netfilter.ip_conntrack_udp_timeout_stream = 180 net.ipv4.route.error_burst = 1250 net.ipv4.route.error_cost = 250 net.ipv4.route.gc_elasticity = 8 net.ipv4.route.gc_interval = 60 net.ipv4.route.gc_min_interval = 0 net.ipv4.route.gc_min_interval_ms = 500 net.ipv4.route.gc_thresh = 2048 net.ipv4.route.gc_timeout = 300 net.ipv4.route.max_size = 32768 net.ipv4.route.min_adv_mss = 256 net.ipv4.route.min_pmtu = 552 net.ipv4.route.mtu_expires = 600 net.ipv4.route.redirect_load = 5 net.ipv4.route.redirect_number = 9 net.ipv4.route.redirect_silence = 5120 net.ipv4.route.secret_interval = 600 net.ipv4.tcp_abc = 0 net.ipv4.tcp_abort_on_overflow = 0 net.ipv4.tcp_adv_win_scale = 2 net.ipv4.tcp_allowed_congestion_control = reno net.ipv4.tcp_app_win = 31 net.ipv4.tcp_available_congestion_control = reno net.ipv4.tcp_base_mss = 512 net.ipv4.tcp_congestion_control = reno net.ipv4.tcp_dsack = 1 net.ipv4.tcp_ecn = 0 net.ipv4.tcp_fack = 1 net.ipv4.tcp_fin_timeout = 60 net.ipv4.tcp_frto = 2 net.ipv4.tcp_frto_response = 0 net.ipv4.tcp_keepalive_intvl = 75 net.ipv4.tcp_keepalive_probes = 9 net.ipv4.tcp_keepalive_time = 7200 net.ipv4.tcp_low_latency = 0 net.ipv4.tcp_max_orphans = 8192 net.ipv4.tcp_max_ssthresh = 0 net.ipv4.tcp_max_syn_backlog = 256 net.ipv4.tcp_max_tw_buckets = 16384 net.ipv4.tcp_mem = 22143 29524 44286 net.ipv4.tcp_moderate_rcvbuf = 1 net.ipv4.tcp_mtu_probing = 0 net.ipv4.tcp_no_metrics_save = 0 net.ipv4.tcp_orphan_retries = 0 net.ipv4.tcp_reordering = 3 net.ipv4.tcp_retrans_collapse = 1 net.ipv4.tcp_retries1 = 3 net.ipv4.tcp_retries2 = 15 net.ipv4.tcp_rfc1337 = 0 net.ipv4.tcp_rmem = 4096 87380 944768 net.ipv4.tcp_sack = 1 net.ipv4.tcp_slow_start_after_idle = 1 net.ipv4.tcp_stdurg = 0 net.ipv4.tcp_syn_retries = 5 net.ipv4.tcp_synack_retries = 5 net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_timestamps = 1 net.ipv4.tcp_tso_win_divisor = 3 net.ipv4.tcp_tw_recycle = 0 net.ipv4.tcp_tw_reuse = 0 net.ipv4.tcp_window_scaling = 1 net.ipv4.tcp_wmem = 4096 16384 944768 net.ipv4.tcp_workaround_signed_windows = 0 net.ipv4.udp_mem = 23250 31000 46500 net.ipv4.udp_rmem_min = 4096 net.ipv4.udp_wmem_min = 4096 net.netfilter.nf_conntrack_buckets = 4096 net.netfilter.nf_conntrack_checksum = 1 net.netfilter.nf_conntrack_count = 285 net.netfilter.nf_conntrack_expect_max = 64 net.netfilter.nf_conntrack_generic_timeout = 600 net.netfilter.nf_conntrack_icmp_timeout = 30 net.netfilter.nf_conntrack_log_invalid = 0 net.netfilter.nf_conntrack_max = 16384 net.netfilter.nf_conntrack_tcp_be_liberal = 0 net.netfilter.nf_conntrack_tcp_loose = 1 net.netfilter.nf_conntrack_tcp_max_retrans = 3 net.netfilter.nf_conntrack_tcp_timeout_close = 10 net.netfilter.nf_conntrack_tcp_timeout_close_wait = 60 net.netfilter.nf_conntrack_tcp_timeout_established = 432000 net.netfilter.nf_conntrack_tcp_timeout_fin_wait = 120 net.netfilter.nf_conntrack_tcp_timeout_last_ack = 30 net.netfilter.nf_conntrack_tcp_timeout_max_retrans = 300 net.netfilter.nf_conntrack_tcp_timeout_syn_recv = 60 net.netfilter.nf_conntrack_tcp_timeout_syn_sent = 120 net.netfilter.nf_conntrack_tcp_timeout_time_wait = 120 net.netfilter.nf_conntrack_udp_timeout = 30 net.netfilter.nf_conntrack_udp_timeout_stream = 180 net.nf_conntrack_max = 16384 net.unix.max_dgram_qlen = 10 sunrpc.max_resvport = 1023 sunrpc.min_resvport = 665 sunrpc.nfs_debug = 0 sunrpc.nfsd_debug = 0 sunrpc.nlm_debug = 0 sunrpc.rpc_debug = 0 sunrpc.tcp_slot_table_entries = 16 sunrpc.transports = sunrpc.transports = tcp 1048576 sunrpc.transports = udp 32768 sunrpc.udp_slot_table_entries = 16 vm.block_dump = 0 vm.dirty_background_ratio = 5 vm.dirty_expire_centisecs = 3000 vm.dirty_ratio = 10 vm.dirty_writeback_centisecs = 500 vm.drop_caches = 0 vm.laptop_mode = 0 vm.legacy_va_layout = 0 vm.lowmem_reserve_ratio = 256 32 vm.max_map_count = 65536 vm.min_free_kbytes = 2022 vm.mmap_min_addr = 0 vm.nr_pdflush_threads = 2 vm.oom_dump_tasks = 0 vm.oom_kill_allocating_task = 0 vm.overcommit_memory = 0 vm.overcommit_ratio = 50 vm.page-cluster = 3 vm.panic_on_oom = 0 vm.percpu_pagelist_fraction = 0 vm.swappiness = 60 vm.vdso_enabled = 2 vm.vfs_cache_pressure = 100
Citrix
http://packages.debian.org/wheezy/i386/libxp6/download
required
ctxusb-2.2.0_amd64.deb ctxusb-2.2.0_i386.deb ctxusb_2.4.285639_amd64.deb icaclient_12.1.0_amd64.deb icaclient_13.1.0.285639_amd64.deb libmotif-common_2.3.4-4_all.deb libxm4_2.3.4-4_i386.deb nspluginwrapper_1.4.4-1_amd64.deb nspluginwrapper_1.4.4-2_amd64.deb nspluginwrapper_1.4.4-3_amd64.deb openmotif_2.3.1-2_amd64.deb