Restarting webmin firewall/iptables
Solution 1
ok finally success! after modifying /etc/iptables.up.rules, needed to:
iptables-restore /etc/iptables.up.rules
Solution 2
I'm presuming you just want to enable access for your new office ip to and from the firewall so you can then connect from the office ip via webmin? Webmin listens on port 10000 by default afaik.
iptables rule to the firewall
iptables -I INPUT -p tcp -m tcp --dport 10000 -s x.x.x.x -j ACCEPT
iptables rule from the firewall
iptables -I OUTPUT -p tcp -m tcp --sport 10000 -d x.x.x.x -j ACCEPT
where x.x.x.x is your office ip.
Then run iptables-save from the cli.
I'm not sure if you'll have to restart iptables, I doubt it but if you do -
service iptables restart
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alechko
Drupal developer. Salesforce developer. Linux admin/user.
Updated on September 18, 2022Comments
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alechko almost 2 years
I'm trying to figure out how can I restart iptables setup made from webmin. When created the firewall rules, webmin saved everything into iptables.up.rules. I used the iptables to DROP as default action, and ACCEPT traffic only from certain IP addresses using NAT, because Filtering was making connection really slow. One of the IPs was my office IP. After resetting the modem/router at the office, our IP changed, and now I can't access webmin.
I have SSH access via other server, which is also at the ACCEPT list, and has static IP.
So I'm trying to modify iptables.up.rules, and change the old office IP to the new one, but nothing happens.
trying:
user@serv:/# iptables -L Chain INPUT (policy ACCEPT) target prot opt source destination Chain FORWARD (policy ACCEPT) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source destination user@serv:/#
no rules / NAT.
can't restart iptables, nothing happens when restarting webmin, tried
user@serv:/# modprobe -r iptable_nat FATAL: Module iptable_nat is in use.
any ideas how to resolve without rebooting?
thanx.
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alechko about 12 yearsservice iptables not existing. for the ACCEPT rules from the iptables, I've already tried even to ACCEPT any connection, not just for 10000 port, but the webmin settings are overriding any iptables rule I insert from cli.
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Mark Hillick about 12 yearsThe only other thing then would be to clear the iptables.up.rules file with "cat /dev/null > iptables.up.rules". I've never used webmin so I'm not familiar with how it constructs the firewall rules.
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alechko about 12 yearsnot working. I've already tried to remove the file completley, not working either.
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Mark Hillick about 12 yearsGood to know, nice one.