Such as:
Tcp6 0 0 [: :] : 10053 [: :] : * LISTEN
Tcp6 0 0 [: :] : 9094 [: :] : * LISTEN
Tcp6 0 0 [: :] : xinetd [: :] : * LISTEN
Tcp6 0 0 [: :] : 7051 [: :] : * LISTEN
Tcp6 0 0 [: :] : 7053 [: :] : * LISTEN
Tcp6 0 0 [: :] : 7054 [: :] : * LISTEN
Tcp6 0 0 [: :] : 50000 [: :] : * LISTEN
Tcp6 0 0 [: :] : 8054 [: :] : * LISTEN
Tcp6 0 0 [: :] : 9050 [: :] : * LISTEN
Tcp6 0 0 [: :] : 9051 [: :] : * LISTEN
Tcp6 0 0 [: :] : 9053 [: :] : * LISTEN
Tcp6 0 0 [: :] : zabbix - trapper [: :] : * LISTEN
Tcp6 0 0 [: :] : 9092 [: :] : * LISTEN

CodePudding user response:

LISTEN, this is not an existing connection, just a listener, said system waiting for the client to connect to on these ports

CodePudding user response:

But I in other machines Telnet the IP port 50000, Telnet impassability ah,

CodePudding user response:

Check the two places, one is the network impassability, a port is not open open,
Check between the client and the IP, whether can reach, and then to the iptables or firewalld check and have the port clearance,

CodePudding user response:

There are selinux

CodePudding user response:

Two machines IP certainly can reach, when the remote login, because the two machines in
Port should also release, all ports have no limit,

CodePudding user response:

The iptables performs the following:

Root @ iZ2zef1hubdcrpqe132hx4Z: ~ # iptables -l
Chain INPUT (policy ACCEPT)
Target prot opt source destination

Chain FORWARD policy (DROP)
Target prot opt source destination
DOCKER - USER all - anywhere anywhere
DOCKER - ISOLATION all -- anywhere anywhere
ACCEPT all - anywhere anywhere ctstate RELATED, ESTABLISHED
DOCKER all - anywhere anywhere
ACCEPT all - anywhere anywhere
ACCEPT all - anywhere anywhere
ACCEPT all - anywhere anywhere ctstate RELATED, ESTABLISHED
DOCKER all - anywhere anywhere
ACCEPT all - anywhere anywhere
ACCEPT all - anywhere anywhere
ACCEPT all - anywhere anywhere ctstate RELATED, ESTABLISHED
DOCKER all - anywhere anywhere
ACCEPT all - anywhere anywhere
ACCEPT all - anywhere anywhere

Chain the OUTPUT (the policy ACCEPT)
Target prot opt source destination

Chain DOCKER (3 references)
Target prot opt source destination
ACCEPT the TCP - anywhere 192.168.32.2 TCP DPT: 7054
ACCEPT the TCP - anywhere 192.168.32.3 TCP DPT: 7053
ACCEPT the TCP - anywhere 192.168.32.3 TCP DPT: 7051
ACCEPT the TCP - anywhere 192.168.32.4 TCP DPT: 7054
ACCEPT the TCP - anywhere 192.168.32.5 TCP DPT: 7053
ACCEPT the TCP - anywhere 192.168.32.5 TCP DPT: 7051
ACCEPT the TCP - anywhere 192.168.32.7 TCP DPT: 7053
ACCEPT the TCP - anywhere 192.168.32.7 TCP DPT: 7051
ACCEPT the TCP - anywhere 192.168.32.11 TCP DPT: 9092
ACCEPT the TCP - anywhere 192.168.32.12 TCP DPT: 9092
ACCEPT the TCP - anywhere 192.168.32.13 TCP DPT: 9092
ACCEPT the TCP - anywhere 192.168.32.16 TCP DPT: 7050

Chain DOCKER - ISOLATION references (1)
Target prot opt source destination
DROP all - anywhere anywhere
DROP all - anywhere anywhere
DROP all - anywhere anywhere
DROP all - anywhere anywhere
DROP all - anywhere anywhere
DROP all - anywhere anywhere
RETURN all - anywhere anywhere

Chain DOCKER - USER references (1)
Target prot opt source destination
RETURN all - anywhere anywhere