Feb 14 2016

ProFTPD killed with signal 15 on restart: QuickFix on Ubuntu.

If ProFTPD Project is running in StandAlone mode on Ubuntu Linux, the server could result completely stopped weekly.
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Sep 8 2015

Big partitions in Linux (> 2TB).

Manage partitions larger than 2 TeraBytes (for example in large storage arrays)  was something rare some years ago, now with the Mass-Storage-Devices capacity growing tendency it’s quite frequent to need to set-up a so large FileSystem.

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May 19 2015

IPTables Auto-Expiring Rules on Linux.

NetFilter IPTables Project Auto-Expiring Rules could be very interesting (for example) to ban IPs for a certain amount of time, and then have then automatically un-banned (by removing Filtering Rule).

IPTables do not provide an integrated solution for that, but a simple combination with the ‘at’ command can do the magic.
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Apr 3 2015

Anacron run-parts: /etc/cron.daily/amavisd-new exited with return code 1.

Messages like the ones in the article list, originated from a cron job, could be generated on debian systems:

/etc/cron.daily/amavisd-new:
Please run this cronjob as user amavis
run-parts: /etc/cron.daily/amavisd-new exited with return code 1

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Mar 20 2015

Mikrotik IPSec VPNs with multiple destination Networks/Policies and SA(s) management.

While configuring Multiple Networks VPNs (Multiple policy and destination SubNets reached via the same remote IPSec VPN Peer) between Mikrotik and other Firewalls, traffic would randomly stop for certain destinations.

Packet forwarding and encryption only works for one destination (the first matched IPSec Policy) and any other destination (and only the first matched one) will be reachable by performing a ‘SA Flush’.

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