↧
Image may be NSFW.
Clik here to view.
Clik here to view.
Linux Iptables block all network traffic
You would like to block all network traffic using iptables firewall under Debian GNU/Linux. This will block all incoming and outgoing traffic including Internet aka ADSL/ppp0 and it is highly...
View Article
Image may be NSFW.
Clik here to view.
Clik here to view.
Linux Iptables: How to block or open mail server / SMTP protocol
SMTP is used to send mail. Sendmail, Qmail, Postfix, Exim etc all are used on Linux as mail server. Mail server uses the TCP port 25. Following two iptable rule allows incoming SMTP request on port 25...
View Article