Revision [4160]

Last edited on 2011-10-03 07:24:51 by KenFong
Additions:
==zramswap==
http://www.webupd8.org/2011/10/increased-performance-in-linux-with.html

Revision [4154]

Edited on 2011-09-20 01:50:14 by KenFong
Additions:
===Schedule task with at===
atq - list at jobs
at -c - cat job
at 17:00 friday - schedule job at that time

Revision [4132]

Edited on 2011-09-09 23:44:13 by KenFong
Additions:
[[LinuxConsole Console]] [[LinuxCrashDump Crashdump]]
Deletions:
[[LinuxConsole Console]]

Revision [4119]

Edited on 2011-09-05 07:03:35 by KenFong
Additions:
[[LinuxConsole Console]]
-----

Revision [4104]

Edited on 2011-08-17 01:58:30 by KenFong
Additions:
===syn attack===
Add more buffer to your kernel and reduce syn retries. It seems to be somewhat effective towards syn attacks when remote servers try to reduce the tcp window to 0 on the initial handshake.
net.ipv4.tcp_synack_retries = 3
net.ipv4.tcp_syn_retries = 3
net.ipv4.tcp_max_syn_backlog = 4096
ping -s 9000 1.2.3.4
Deletions:
ping -s 1464 1.2.3.4
=== Obtain hardware infomation===
dmidecode
=== SELinux ===
I know nothing about SELinux, always has it disabled.
http://www.linuxdevcenter.com/pub/a/linux/excerpt/selnx_1/index.html

Revision [4098]

Edited on 2011-08-11 08:59:37 by KenFong
Additions:
[[LinuxSessionReplay Record and replay session]] [[LinuxHardening OS Hardening]] [[LinuxCompression Compression]]
Deletions:
[[LinuxSessionReplay Record and replay session]] [[LinuxHardening OS Hardening]]

Revision [4020]

Edited on 2011-06-18 01:29:53 by KenFong
Additions:
[[LinuxStrace strace]] [[LinuxKickStart KickStart]] [[LinuxDVDWriting DVDWriting]] [[LinuxCDWriting CDWriting]] [[LinuxLTSP LTSP]] [[LinuxCompile Compile]] [[LinuxWine Wine]]
Deletions:
[[LinuxStrace strace]] [[LinuxKickStart KickStart]] [[LinuxDVDWriting DVDWriting]] [[LinuxLTSP LTSP]] [[LinuxCompile Compile]] [[LinuxWine Wine]]

Revision [3974]

Edited on 2011-05-17 02:45:31 by KenFong
Additions:
[[LinuxSessionReplay Record and replay session]] [[LinuxHardening OS Hardening]]
Deletions:
[[LinuxSessionReplay Record and replay session]]

Revision [3956]

Edited on 2011-04-27 07:53:54 by KenFong
Additions:
[[LinuxProcfs ProcFS]] [[LinuxBenchmark Benchmark]] [[LinuxMultiMedia Multimedia]] [[LinuxNetTuning NetTuning]] [[LinuxWireless WirelessNetworking]]
[[LinuxSensors Sensors]] [[LinuxRPMRepository Custom Repo]] [[LinuxMouse Mouse]] [[LinuxPackage Package]] [[LinuxNFS NFS]] [[LinuxSyslog Syslog]]
[[LinuxSessionReplay Record and replay session]]
Deletions:
[[LinuxProcfs ProcFS]] [[LinuxBenchmark Benchmark]] [[LinuxMultiMedia Multimedia]] [[LinuxNetTuning NetTuning]] [[LinuxWireless WirelessNetworking]] [[LinuxSensors Sensors]] [[LinuxRPMRepository Custom Repo]] [[LinuxMouse Mouse]] [[LinuxPackage Package]] [[LinuxNFS NFS]] [[LinuxSyslog Syslog]]

Revision [3952]

Edited on 2011-04-24 20:09:36 by KenFong
Additions:
[[LinuxProcfs ProcFS]] [[LinuxBenchmark Benchmark]] [[LinuxMultiMedia Multimedia]] [[LinuxNetTuning NetTuning]] [[LinuxWireless WirelessNetworking]] [[LinuxSensors Sensors]] [[LinuxRPMRepository Custom Repo]] [[LinuxMouse Mouse]] [[LinuxPackage Package]] [[LinuxNFS NFS]] [[LinuxSyslog Syslog]]
Deletions:
[[LinuxProcfs ProcFS]] [[LinuxBenchmark Benchmark]] [[LinuxMultiMedia Multimedia]] [[LinuxNetTuning NetTuning]] [[LinuxWireless WirelessNetworking]] [[LinuxSensors Sensors]] [[LinuxRPMRepository Custom Repo]] [[LinuxMouse Mouse]] [[LinuxPackage Package]] [[LinuxNFS NFS]]

Revision [3939]

Edited on 2011-04-12 08:08:43 by KenFong
Additions:
[[LinuxProcfs ProcFS]] [[LinuxBenchmark Benchmark]] [[LinuxMultiMedia Multimedia]] [[LinuxNetTuning NetTuning]] [[LinuxWireless WirelessNetworking]] [[LinuxSensors Sensors]] [[LinuxRPMRepository Custom Repo]] [[LinuxMouse Mouse]] [[LinuxPackage Package]] [[LinuxNFS NFS]]
Deletions:
[[LinuxProcfs ProcFS]] [[LinuxBenchmark Benchmark]] [[LinuxMultiMedia Multimedia]] [[LinuxNetTuning NetTuning]] [[LinuxWireless WirelessNetworking]] [[LinuxSensors Sensors]] [[LinuxRPMRepository Custom Repo]] [[LinuxMouse Mouse]] [[LinuxPackage Package]]

Revision [3884]

Edited on 2010-11-30 08:42:08 by KenFong
Additions:
===Networking tweaks===
ifconfig eth0 mtu 9000 txqueuelen 10000
modprobe tcp_illinois
net.ipv4.tcp_congestion_control = illinois

Revision [3877]

Edited on 2010-11-02 21:22:29 by KenFong
Additions:
3. Typed zdump -v `echo $TZ` | grep 2010 to confirm that the DST patch had been applied. Results:
US/Eastern Wed Nov 3 04:20:50 2010 UTC = Wed Nov 3 00:20:50 2010 EDT isdst=1
US/Eastern Sun Mar 14 06:59:59 2010 UTC = Sun Mar 14 01:59:59 2010 EST isdst=0
US/Eastern Sun Mar 14 07:00:00 2010 UTC = Sun Mar 14 03:00:00 2010 EDT isdst=1
US/Eastern Sun Nov 7 05:59:59 2010 UTC = Sun Nov 7 01:59:59 2010 EDT isdst=1
US/Eastern Sun Nov 7 06:00:00 2010 UTC = Sun Nov 7 01:00:00 2010 EST isdst=0
Deletions:
3. Typed zdump -v CST6CDT | grep 2007 to confirm that the DST patch had been applied. Results:
CST6CDT Sun Mar 11 07:59:59 2007 UTC = Sun Mar 11 01:59:59 2007 CST isdst=0 gmtoff=-21600
CST6CDT Sun Mar 11 08:00:00 2007 UTC = Sun Mar 11 03:00:00 2007 CDT isdst=1 gmtoff=-18000
CST6CDT Sun Nov 4 06:59:59 2007 UTC = Sun Nov 4 01:59:59 2007 CDT isdst=1 gmtoff=-18000
CST6CDT Sun Nov 4 07:00:00 2007 UTC = Sun Nov 4 01:00:00 2007 CST isdst=0 gmtoff=-21600

Revision [3767]

Edited on 2010-08-02 09:01:26 by KenFong
Additions:
[[LinuxProcfs ProcFS]] [[LinuxBenchmark Benchmark]] [[LinuxMultiMedia Multimedia]] [[LinuxNetTuning NetTuning]] [[LinuxWireless WirelessNetworking]] [[LinuxSensors Sensors]] [[LinuxRPMRepository Custom Repo]] [[LinuxMouse Mouse]] [[LinuxPackage Package]]
Deletions:
[[LinuxProcfs ProcFS]] [[LinuxBenchmark Benchmark]] [[LinuxMultiMedia Multimedia]] [[LinuxNetTuning NetTuning]] [[LinuxWireless WirelessNetworking]] [[LinuxSensors Sensors]] [[LinuxRPMRepository Custom Repo]] [[LinuxMouse Mouse]]

Revision [3643]

Edited on 2010-02-22 07:55:08 by WikiAdmin
Additions:
[[LinuxProcfs ProcFS]] [[LinuxBenchmark Benchmark]] [[LinuxMultiMedia Multimedia]] [[LinuxNetTuning NetTuning]] [[LinuxWireless WirelessNetworking]] [[LinuxSensors Sensors]] [[LinuxRPMRepository Custom Repo]] [[LinuxMouse Mouse]]
Deletions:
[[LinuxProcfs ProcFS]] [[LinuxBenchmark Benchmark]] [[LinuxMultiMedia Multimedia]] [[LinuxNetTuning NetTuning]] [[LinuxWireless WirelessNetworking]] [[LinuxSensors Sensors]] [[LinuxRPMRepository Custom Repo]]

Revision [3491]

Edited on 2009-08-16 23:46:15 by WikiAdmin
Additions:
[[LinuxProcfs ProcFS]] [[LinuxBenchmark Benchmark]] [[LinuxMultiMedia Multimedia]] [[LinuxNetTuning NetTuning]] [[LinuxWireless WirelessNetworking]] [[LinuxSensors Sensors]] [[LinuxRPMRepository Custom Repo]]
Deletions:
[[LinuxProcfs ProcFS]] [[LinuxBenchmark Benchmark]] [[LinuxMultiMedia Multimedia]] [[LinuxNetTuning NetTuning]] [[LinuxWireless WirelessNetworking]] [[LinuxSensors Sensors]]

Revision [2326]

Edited on 2009-06-24 07:17:16 by WikiAdmin
Additions:
[[LinuxProcfs ProcFS]] [[LinuxBenchmark Benchmark]] [[LinuxMultiMedia Multimedia]] [[LinuxNetTuning NetTuning]] [[LinuxWireless WirelessNetworking]] [[LinuxSensors Sensors]]
Deletions:
[[LinuxProcfs ProcFS]] [[LinuxBenchmark Benchmark]] [[LinuxMultiMedia Multimedia]] [[LinuxNetTuning NetTuning]] [[LinuxWireless WirelessNetworking]]

Revision [2265]

Edited on 2009-04-05 08:52:15 by WikiAdmin
Additions:
===MTU size===
Experiment with the ping -s option
ping -s 1464 1.2.3.4

Revision [2258]

Edited on 2009-03-29 19:55:49 by WikiAdmin
Additions:
[[LinuxSuse SuSe]]

Revision [2192]

The oldest known version of this page was created on 2009-02-11 07:28:16 by WikiAdmin
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