debian

Bug in munin

Few weeks i observed strange graphs for network usage produced by munin, i did not attach any importance to this. But few days ago when i seen again 600Mbit badwidth usage on host that had 10Mbit connection i remembered that before made some changes in munin.conf. I looked at config and found that changed directive […]

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A riddle from abyss

A week ago, when i worked at home computer i encountered with strange issue, xorg was stuck, i tried ctrl-alt-backspace and magic keys without result, so i rebooted host. While computer is booted i saw few errors from different daemons that they can not found some files and finally when i tried to login i […]

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Apt pinning note

Some days ago i got additional VDS and wanted to install php5-fpm from dotdeb, but after i added dotdeb repository, apt started to try upgrade mysql and nginx from dotdeb. Solution to stop that: $ cat > /etc/apt/preferences.d/dotdeb << EOF Package: * Pin: origin "packages.dotdeb.org" Pin-Priority: 50 EOF$ cat > /etc/apt/preferences.d/dotdeb << EOF Package: * […]

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IPv6 Ready

Yeah!

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Tor blacklist

Few month ago i was interested in how to block incoming traffic from Tor network. Tor network have finitely numbers of exit nodes, so the solution is to block traffic from this nodes. I see two solutions how to block exit nodes.  First use TorDNSEL service, in brief you can check that connection comes from […]

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How to deal with hotmail spam filter

Few months ago i faced with hotmail spam filter, every time when my host tried to send email to any hotmail address i saw next error in log file: 550 SC-001 (SNT0-MC2-F18) Unfortunately, messages from IP.AD.DR.ESS weren’t sent. Please contact your Internet service provider since part of their network is on our block list. You […]

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Port based routing

After i came on new work i found that can not send email thru SMTPS, because port 465 closed on router. At this point i already had configured VPN access on my home router, so i think that it is good idea to route SMTPS traffic thru VPN, let’s start. For this purposes i needed […]

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