Linux - NetworkingThis forum is for any issue related to networks or networking.
Routing, network cards, OSI, etc. Anything is fair game.
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My server is rejecting all ports even though I disabled the firewall, killed iptables, and checked everything I know of. No, this is not an issue with the hardware firewall. I can connect via http, ftp, or ssh FROM the server itself, but from any other computer it simply rejects the connection?
This started happening ever since the town I live in had a brownout. My server got turned off (not the healthy way) when this was happening. When I started it up again, I had to do a "e2fschk -c -y /dev/hda1", but other than that every thing seemed ok.
I am running RedHat 9.0 linux. I have a linksys router that connects my server to the world, I know its not the router because I am using another computer behind the router.
You do not mention whether you can ping the router or the other PC and vice versa. Is the NIC configured with a dynamic or static IP address. Does the NIC still have a valid IP address etc. etc. Link lights illuminated. Verify the cable (assuming your not wireless) is still securely connected on both ends. Try swapping ports on the router. I had a NIC go bad or a hub port go bad which appeared to take out the other side.
BTW, your firewall probably allows all lo connections so accessing on the sever itself may not mean the firewall is disabled for eth0.
World connects to Router/firewall.
Other computer connected to router/firewall.
Server connected to router/firewall.
Router/firewall rejects all ports except 80 and 21, which it forwards to my server. I can ping my server from the Other computer, it just rejects me when I try to login via SSH, HTTP, or FTP, although proftp, apache, and sshd are running without problems. Every thing worked perfectly a few days ago before the server got shut down improperly.
I figured out the problem after I reinstalled a newer version of linux on my server.
You will never belive this, but somehow my mothers computer (running WinblowsXP) set itself to DHCP on our static network, and somehow decided to give itself my servers IP address! The only way I ever figured this out, even though it is too late, is because my Mom came up to me and said that a little warning box kept poping up that said something about an IP conflict. So I went to check it out, and someone or something had set her IP resolution mode to DHCP in the network config dialog. So anyhow, my server is working great now. Thanks for all your time guys, at least I learned allot of stuff, and I needed to upgrade my server anyhow.