iptables-save can't save settings
 

Hi, I am new here,

Config a CentOS iptables.

I issued some iptables rules.
the rules were effective at once.
Then, I came with a "iptables-save", but the "/etc/sysconfig/iptables" file hasn't been updated, it still loads the defaults rules with CentOS after reboot.

I tried a new installation on VMware, but it's the same.

Thanks for help.

From the man page

I think that describes the problem and suggests the answer.

HTH

iptables-save? never seen or used it like that, I generally use "/etc/init.d/iptables save" alternatively as root "service iptables save". Remember you need root permissions for iptables to be able to write to it's on configuration file.

Yeah, if you use the iptables-save binary you'd need to specify where to send the output. Example:The "service iptables save" mentioned by r3sistance seems like the most popular method to me (for Red Hat-based distros), though. BTW, I'm moving this to Software, as it's not a security issue (at least not directly).

Thanks for all.

I had overlooked the instruction of iptables-save command.