Search found 4 matches

by lnxlnr
2018/02/09 08:18:30
Forum: CentOS 6 - Networking Support
Topic: problem to open port 465
Replies: 9
Views: 356

Re: problem to open port 465

Dear @Whoever

Thanks for your reply.

CSF and SELinux are disabled.

I am going to send email from the server.
The below image shows the result of running your suggested command:

iptabls2.JPG
iptabls2.JPG (12.12 KiB) Viewed 294 times



Should I flush the CSF?
by lnxlnr
2018/02/08 16:03:53
Forum: CentOS 6 - Networking Support
Topic: problem to open port 465
Replies: 9
Views: 356

Re: problem to open port 465

There's also nmap (and nmap-frontend which gives you zenmap) in the base distros. Be careful though, running a portmapper can get you into trouble if you don't have the authority to do so on the network. Thanks I used command nmap -sA X.X.X.X it shows that all the scanned ports of the server are un...
by lnxlnr
2018/02/08 15:01:37
Forum: CentOS 6 - Networking Support
Topic: problem to open port 465
Replies: 9
Views: 356

Re: problem to open port 465

Thanks for your promp reply. As you said the iptables is wide open. I turned off the CSF. But the port is closed yet! I asked the DC technicians about the port status and they said it is open on their firewall. But I believe the problem is with their firewall. Is there any command to check (from the...
by lnxlnr
2018/02/08 13:31:33
Forum: CentOS 6 - Networking Support
Topic: problem to open port 465
Replies: 9
Views: 356

problem to open port 465

Hi everybody I need to open the smtp port 465 in centos 6.9 as output port to send recovery email of my wp website. The below image is the setting of the Iptables. iptables.jpg Also in CSF, I have defined port 465 as the white tcp port. but when I use command sudo lsof -i :465 -n -P , I recieve no f...