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Stress testing a new hard drive...

Posted 11-20-2011 at 10:38 PM by sag47
Updated 11-20-2011 at 10:40 PM by sag47
Tags hardware

You should always stress test a new harddrive when you buy it.

Some people say, "Just hook it up for a few months and keep unimportant data on it. If it breaks in that 1-3 month time then it will be good for 3 or 4 years."

While that metric is okay at best I prefer to take a more systematic approach to it. I want to fill the whole hard drive with random 1 and 0 over a constant and long period of time. I do that because you are stressing the hard drive out...
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Posted in Uncategorized
Views 8160 Comments 0 sag47 is offline
Old

removing extra console terminals

Posted 11-20-2011 at 06:12 PM by neonsignal

Many Linux distros are installed to have multiple consoles, selected using ctrl-alt-f1 through to ctrl-alt-f6. Where memory is extremely tight, this can be reduced to save some space, by commenting out the relevant [i/]/sbin/getty[/i] lines in /etc/inittab. This will also mean that X will be invoked from a different ctrl-alt-f sequence.

Note that this will only save around half a meg of resident memory per console, so for conventional desktop/laptop systems it is not worth changing....
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Views 317 Comments 0 neonsignal is offline
Old

virus scanning

Posted 11-20-2011 at 06:02 PM by neonsignal
Updated 11-20-2011 at 06:03 PM by neonsignal

Although malware has not been the same problem to the same degree on Linux as on other operating systems, it is still possible to run a virus scanner.

A straightforward one is clamav, which is in the repositories of many distros. Typically the install will set up a cron job to grab daily virus signature list updates (this can be disabled by removing /etc/cron.d/clamav-freshclam). The signature list can also be updated manually:
Code:
freshclam
To scan...
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Old

Useful linux basic commands

Posted 11-20-2011 at 08:36 AM by ted_chou12
Updated 11-20-2011 at 08:42 AM by ted_chou12 (sed "s:its:it's:g")
Tags basic, commands, pdf

Hi, I found this online, it's pretty useful, I printed one out and posted on my wall XD. Cause I am not a pro, so I don't think memorizing them is necessary. But if u do frequently use them, u probably would remember, anyways, c attachment.
Attached Images
File Type: pdf linux_basics.pdf (69.1 KB, 4 views)
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Old
Rating: 2 votes, 3.00 average.

Traffic and Process Id correlation with audit and ULOG on IA-32 Centos-5.7

Posted 11-20-2011 at 08:24 AM by unSpawn

# ...being basically a clarification of dump all packets and list them according to the processes that either sent or received them and what command could display current running processes relating to eth0 so I can refer back to this when needed.

The question: generate an audit trail that includes captured traffic and process information.
The problem: when capturing packets no process information is stored.
Solution: correlation provides the "glue" between...
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Views 3820 Comments 1 unSpawn is offline

  



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