2.4.20-8 port 25 closed, cant open
Hello All,
Redhat 9 box running apache, postfix, few other things. When I nmap my local box, I am told: Port State Service 22/tcp open ssh 25/tcp open smtp 80/tcp open http 111/tcp open sunrpc 631/tcp open ipp 6000/tcp open X11 8080/tcp open http-proxy 10000/tcp open snet-sensor-mgmt When I nmap my domain from outside my lan I get: PORT STATE SERVICE 20/tcp closed ftp-data 21/tcp closed ftp 25/tcp closed smtp 80/tcp open http 81/tcp open hosts2-ns 110/tcp closed pop-3 113/tcp closed auth 232/tcp open unknown 252/tcp closed unknown 3389/tcp open ms-term-serv 5901/tcp closed vnc-1 8080/tcp open http-proxy Why do 21, 25 110 all show up as closed from the outside. I have verified that my ISP (RoadRunner) does not block 25. I cant figure this out. Even iptabes looks clean: 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 Any help you guys can offer would be GREATLY appreciated. I am running out of hair. Thanks -=Mike M |
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