Software Install Commands

sudo aptitude install postfix
sudo aptitude install sendmail

sudo aptitude remove postfix
sudo aptitude remove sendmail

install telnet (not installed by default)

sudo aptitude install telnet

Mail Commands

show pending mail in queue

mailq

access mail system

mail

pending mails stored in /var/spool

Sending Mail Manually with Telnet

telnet localhost 25

ehlo localhost
mail from: root@localhost
rcpt to: fmaster@localhost
data
Subject: hello
some content
.
quit

...the dot marks the end of the email

SendMail Commands

sudo /etc/init.d/sendmail start
sudo /etc/init.d/sendmail stop
sudo /etc/init.d/sendmail restart

config files saved in /etc/mail/config.cf

Mongrel Cluster Commands

mongrel_rails cluster::start
mongrel_rails cluster::stop
mongrel_rails cluster::restart

MySQL login

login to server

mysql -u root -p

Shutdown Server Gracefully

shutdown now and reboot

shutdown -r now

Login as Another

su anotheruser

Show Pending Jobs

jobs

Mongrel Cluster Restart

mongrel_rails cluster::restart -C /var/www/apps/[myapp]/config/mongrel_cluster.yml

replace [myapp] with your apps dir

CRONTAB + Mongrel - fire on restart

add above line to /home/deploy/start.sh

crontab -e

then add...

@reboot (sh /home/deploy/start.sh) > /dev/null 2>&1

save and should fire + restart on reboot

Kill Processes

find if firefox is running...

ps aux | grep firefox

kill firefox...

killall firefox

or specifically...

kill 19919  <- processid

NGINX

sudo /etc/init.d/nginx start
sudo /etc/init.d/nginx stop
sudo /etc/init.d/nginx restart