Archive for April, 2009

Documentation → Bash: Input from multiple files.

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April 25th, 2009 by Jgz

exec 3<$1 4<$2

while read file1 <&3 && read file2 <&4
do
code
done

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Documentation → Rsyslog: remote logging

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April 16th, 2009 by Jgz

On the client you want to log from:
vi /etc/rsyslog.conf
…
*.* @RemoteSyslogIPAddress:Port
…

Example:
*.* @172.18.1.50:514

On the remote logging server:
vi /etc/rsyslog.conf
…
# Begin – Allow remote logging
$ModLoad imudp.so
$UDPServerRun 514
# End – Allow remote logging
…

Need to send a HUP to the rsyslogd process or

service rsyslog reload

Documentation → Protected: MacOSX: Connecting to a Cisco router/switch.

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April 15th, 2009 by Jgz

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Documentation → Usefull lsof options

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April 6th, 2009 by Jgz

Various useful lsof options:

To view files open by a particular PID:
lsof -p pidnumber

To show processes and the port they are running on. This is a great command to find out not only process and port, but also the command and the PID.:
lsof -i -nP # The -n does not resolve the IP addresses and ports to names.

Source: http://sial.org/howto/debug/unix/lsof/

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