Originally published June 22, 2017 @ 11:07 am
Below is a quick example of how to use iptables to allow port access for all types of private networks. In this case we’re allowing access to ports 10000 and 20000, commonly used by webmin and usermin.
for i in 127.0.0.0/8 10.0.0.0/8 172.16.0.0/12 192.168.0.0/16; do
for j in 10000 20000; do
iptables -A INPUT -p tcp --dport ${j} -s ${i} -j ACCEPT
done; done
iptables -S && /sbin/iptables-save && /sbin/service iptables save
Experienced Unix/Linux System Administrator with 20-year background in Systems Analysis, Problem Resolution and Engineering Application Support in a large distributed Unix and Windows server environment. Strong problem determination skills. Good knowledge of networking, remote diagnostic techniques, firewalls and network security. Extensive experience with engineering application and database servers, high-availability systems, high-performance computing clusters, and process automation.
