The Swamp!

One of the best ways to secure any server, is using something called a "firewall".

One of the most longstanding and popular firewalls is something called IPTABLES. IPTABLES is basically an evolved version of the old IPCHAINS firewall which was the standard firewall which nearly every *nux box ran for years.

Here are some of the main commands any firewall admin has to know.

# KEY FIREWALL COMMANDS using IPTABLES (not old ipchains)

To CLEAR OUT the /var/log/firewall and /var/log/syslog , run:
 etc/rc.d/rc.syslog stop

then run:
mv /var/log/firewall /var/log/firewall-backup

then run:
mv /var/log/syslog /var/log/syslog-backup

then run:
/etc/rc.d/rc.syslog restart

then, inside of  your /var/log directory, run:
ls -ks
Note: You do this to make sure that the new firewall and syslog files exist and are logging.

then run:
rm "firewall-backup"

and then run:
rm "syslog-backup"

######  ######


more digital solutions found at:
apache.org
xdose.com
ContentAndAds.com
FreeBSDRocks.net
TheSwamp.info
FileCorner.com
netfilter.org
Wikipedia > IPTables Guide