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public key for repositories

Posted 11-26-2011 at 06:14 AM by neonsignal
Updated 11-26-2011 at 06:16 AM by neonsignal

When adding a new apt repository and calling apt-get update, the following message indicates that the signing key for that repository has not been added to the apt keyring:
The following signatures couldn't be verified because the public key is not available
These keys can be added in manually, although this may vary between repositories. For example, on the, the keys can be obtained by installing the package debian-multimedia-keyring....
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Windows-like folder organization for binaries and libraries through symbolic links?

Posted 11-25-2011 at 03:28 PM by the dsc (linux-related notes)

Just another of those things I catch myself wondering sometimes, but I don't think that are important enough for the forums.

What if linux had folders for each program, more or less like on windows, but still had its "grab-bag" folders for libraries and whatever that may be used for more than one program, but instead of using it through a "$path", it had a symlink within the program's own folder?

Or perhaps it could use by default through something...
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Views 1450 Comments 2 the dsc is offline

msmtp certificate, tls_trust_file, verified

Posted 11-25-2011 at 08:50 AM by ted_chou12

Hi, I recently installed msmtp, I tried a lot of certificates, the one that I found to work was in /etc/ssl/certs/ca-certificates.crt
If you by any chance don't have it in that directory, it could be partial install or something. (It should come with the package).
Email me if you need it.
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Views 1285 Comments 0 ted_chou12 is offline

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, 139 views)
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Views 4585 Comments 0 unSpawn is offline

Migration from Solaris 10 to Red Hat Enterprise Linux

Posted 11-23-2011 at 10:15 PM by bits45

We've been using Solaris 10 on Sparc and x86 for years. With the recent Oracle takeover and the lack of OSS movement (updates) from Sun (too little, too late), we've been moving all of our Apache and MySQL servers to RHEL 5.7. In most cases we've stayed on the same exact Egenera Nehalem pBlades and used the same SAN storage. So all the hardware is exactly the same. The speed increase comparison between Solaris 10 and RHEL has been nothing short of amazing. Seems like everything goes faster...
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Views 586 Comments 0 bits45 is offline


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