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rpmlib(PayloadIsXz) is needed by opera-11.60-1185

Posted 12-10-2011 at 05:49 AM by unSpawn

Code:
Running rpm_check_debug
ERROR with rpm_check_debug vs depsolve:
rpmlib(PayloadIsXz) is needed by opera-11.60-1185
Complete!
(1, [u'Please report this error in http://bugs.centos.org/set_project.php?project_id=16&ref=http://bugs.centos.org/bug_report_page.php?category=yum'])
If you run into the above warning and are unable to get Opera installed the you should be aware of how Opera responded:
Quote:
this is not a change in policy, just
...
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Posted in Uncategorized
Views 2054 Comments 0 unSpawn is offline
Old

Iptables rule traversal: bandwidth at >= 10K of IP addresses

Posted 11-24-2011 at 08:07 PM by unSpawn
Updated 11-24-2011 at 02:53 PM by unSpawn

Anyone who is interested in iptables performance will find Harris, Melara, Smith and Nico's "Performance analysis of the Linux firewall in a host" (2002) and Kadlecsik and Pásztor's "Netfilter Performance Testing" (2005). But what actually is the effect of a large rule set on performance?

The attached PDF I created is not an an exhaustive study of Netfilter performance but shows you Jperf data and pictures (joy!) for plain rule sets, ipset (iphash) and the iptables...
Attached Images
File Type: pdf Iptables rule traversal.pdf (551.9 KB, 98 views)
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Views 2573 Comments 0 unSpawn is offline
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 2726 Comments 1 unSpawn is offline
Old

Rootkit Hunter alternative for suspscan

Posted 07-25-2011 at 06:16 PM by unSpawn

I've been mulling (yes, mulling) replacements for RKH's suspscan for a while now. Suspscan was an experiment to see if there could be a more generic, less name-based way of finding malware. The resultant monstrosity is resource-intensive, impossible to configurable and rarely used. Researching something else (as usual) I came across this rather good presentation (PDF) about creating ones own AV signatures: Writing ClamAV Signatures and not long after that I found R-fx Networks' Linux Malware Detect....
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Old

Mypaint-0.5.0 .spec

Posted 01-05-2011 at 07:41 AM by unSpawn

Mypaint is a open-source graphics application for use with a tablet. It kind of looks like Fractal Design Painter must have looked at alpha 0.1 stage. Nonetheless worth a try building a package. Here's a spec built, tested and installed on Centos 5.5 Intel. Note it doesn't build for x86_64 as I have none:
Code:
%define debug_packages  %{nil}
%define debug_package %{nil}
%define name mypaint
%define ver 0.5.0
%define rel 1
Name: %{name}
Summary:
...
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