my own pastebin :P
Upgrading munin on CentOS/RHEL/Scientific Linux using the rpm from EPEL repositories results in an empty plugin list on the nodes:
ls -al /etc/munin/plugins/
easy fix:
munin-node-configure --suggest --shell | sh ; service munin-node restart
to verify what was detected just run:
ls -al /etc/munin/plugins/
If your clock is wrong you might have a wrong hwclock set…
yum install ntp ntpdate -s it.pool.ntp.org hwclock -w
on a side not to change the timezone on RHEL 6.x adjust the clock settings config file:
nano -w /etc/sysconfig/clock
set it as you wish:
ZONE="Europe/Rome"
then set the localtime
cp /usr/share/zoneinfo/Europe/Rome /etc/localtime
BFD is an easy to use brute force detection script that plays very nicely when combined with APF…
currently it does support certain daemons out of the box… but vspftd is not one of those 
This a *very basic* (it does not pass the offending username to bfd) script to add VSFTPD support to BFD.
You just need to create a file named “vsftpd” into the BFD ./rules/ directory and paste this content into it:
REQ="/usr/sbin/vsftpd" if [ -f "$REQ" ]; then LP="/var/log/vsftpd.log" TLOG_TF="vsftpd" #Mon Mar 28 23:57:38 2011 [pid 9897] [asdasd] FAIL LOGIN: Client "127.0.0.1" ## VSFTPD ARG_VAL=`$TLOG_PATH $LP $TLOG_TF | grep -w 'FAIL LOGIN' | sed -r 's/^.{0,}Client .//' | sed 's/"/:vsftpd/g'` fi
This script refers to the standard vsftpd rhel/centos installation…
If the logfile is placed elsewhere (vsftpd_log_file) or if the option “syslog_enable” in vsftpd.conf has been enabled it needs to be adjusted 
PS: this was a NON-WORKING test (usernames with a space in it where making it fail):
ARG_VAL=`$TLOG_PATH $LP $TLOG_TF | grep -w 'FAIL LOGIN' | awk '{print $12":"$8}' | tr '[]"'`
“somehow” Microsoft (or Hewlett Packard?) dropped HP PSC 2100 series support in Windows 7…
but you can still get it working…
Read more…
*POST UPDATED – now referring to centos6*
I get in touch with many people related to centos reinstall… I’m aware in certain conditions it’s a pain to have it rolling properly…
I do this for work, just contact me if you want it done for a small fee 
There are some ISPs in the dedicated servers market that are offering crappy CentOS installs…
With “crappy” I mean: broken/modifed images…
The worst example I had the opportunity to try was OVH.
OVH is in general a very good dedicated hosting provider offering very nice services at an impressive low price… but they have the bad attitude to install custom operating systems that many times cannot be reverted back to the original kernels
One of them is their CentOS 5 install… Lucky for us it’s not a big problem as, most times, it’s possible to do a clean CentOS install
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