Tmux conf

This is my favor:  /root/.tmux conf: # C-b is not acceptable — Vim uses it set-option -g prefix C-a bind-key C-a last-window # Start numbering at 1 set -g base-index 1 # Allows for faster key repetition set -s escape-time 0 # Set status bar set -g status-bg black set -g status-fg white set -g […]

Some command to check and trouble shoot sendmail

Check send mail version: #/usr/sbin/sendmail -d0.13 </dev/null Kill Sendmail #killall -HUP sendmail Check network status of sendmail: #netstat -tuplan | grep sendmail #  netstat -lnptu #netstat -tulpn | grep :53 Check Sendmail routing: #echo “3,0” | sendmail -bt #echo “3,0” | sendmail -bt # sendmail -bv Checking Spam filter process: #ps -aux […]

Obscure Tips for Sendmail Admin Intro Sendmail is an amazing program. The O’Reilly Sendmail book is its equal, coming in well over 1000 pages. I constantly marvel at how it was possible to pack so much knowledge into one book written by one person. Having run sendmail for over 10 years, I’ve built up a few inside tips that […]

Sendmail milter – build and install from the source This document describes installing Sendmail to utilize some of it’s neater features, to be a little more secure (we will run Sendmail under a non-root id, and with TLS), to support SMTP AUTH, and so we have a better understanding of Sendmail itself. Please note that we assume you have already installed Procmail and […]

How to Do to Planning One of the most common sets of activities in the management is planning. Very simply put, planning is setting the direction for something — some system — and then guiding the system to follow the direction. There are many kinds of planning in organizations. Common to these many kinds of planning are various phases […]