Re: iptables reject with TCP RST
On Sun, May 14, 2023 at 08:36:38AM +0800, Tom Reed wrote:
> tcp 0 0 0.0.0.0:587 0.0.0.0:* LISTEN
> 32157/master
>
>
> And the telnet results:
>
> $ telnet 193.106.250.xx 587
> Trying 193.106.250.xx...
> telnet: Unable to connect to remote host: Connection timed out
So, it looks like it's not a LAN address. It's a mail server on the
public Internet? As in, your telnet client and your server are NOT
talking directly to each other over a straight ethernet connection?
There's routers and stuff in between them?
You'd need to investigate the possibility of a firewall-equivalent at
each hop along the way.
Reply to: