0
votes
1answer
778 views

Commands not found: netstat, nmap on CentOS 7

The commands nmap, netstat and lsof are not found on CentOS7. Why? What should I do to make them work?
0
votes
0answers
12 views

Why SAMP is not listening to the port

I have forwarded 38474 port to internal port 7778. Then I launched San Andreas Multiplayer on my CentOS server. When I'm typing netstat -npl I see this: Proto: tcp Recv-Q: 0 Send-Q: 0 Local Address: ...
0
votes
0answers
41 views

port being in use not displayed in netstat output

In what scenarios port being used by a process don't show up in netstat -a output. I'm running jenkins on my machine. It's listening on port 8080. I'm trying to start another process that tries to ...
0
votes
1answer
158 views

Iptables rule to allow only one port and block others

We have two apps running (on top of linux) and both communicates through port 42605. I wanted to quickly verify if this is the only port that's been used for communication between them. I tried below ...
2
votes
2answers
1k views

Open a port in my CentOS

I'm trying top open a port on my CentOS machine: I edit the /etc/sysconfig/iptables file and add my rule: -A INPUT -p TCP -m state --state NEW -m tcp --dport 143 -j ACCEPT Then I restart the ...
5
votes
3answers
775 views

How can I know the process name which is opening a tcp port?

I have two linux servers. Let's say they are C and S. C is client of S On my S machine, I type. $ netstat -an | grep ESTABLISHED tcp 0 0 192.168.1.220:3306 C:57010 ...