Host:



antoine.pietri@swh-prod:~$ ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: ens160: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
    link/ether 00:50:56:94:50:f9 brd ff:ff:ff:ff:ff:ff
    inet 137.204.21.159/24 brd 137.204.21.255 scope global ens160
       valid_lft forever preferred_lft forever
    inet6 fe80::250:56ff:fe94:50f9/64 scope link 
       valid_lft forever preferred_lft forever
3: ens192: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
    link/ether 00:50:56:94:4f:32 brd ff:ff:ff:ff:ff:ff
    inet 10.100.0.11/24 brd 10.100.0.255 scope global ens192
       valid_lft forever preferred_lft forever
    inet6 fe80::250:56ff:fe94:4f32/64 scope link 
       valid_lft forever preferred_lft forever
4: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default qlen 1000
    link/ether 52:54:00:09:66:e1 brd ff:ff:ff:ff:ff:ff
    inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0
       valid_lft forever preferred_lft forever
5: virbr0-nic: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast master virbr0 state DOWN group default qlen 1000
    link/ether 52:54:00:09:66:e1 brd ff:ff:ff:ff:ff:ff




antoine.pietri@swh-prod:~$ nc -l 137.204.21.159 8888 &
[3] 3256
antoine.pietri@swh-prod:~$ ss -nltp | grep 8888
LISTEN     0      1      137.204.21.159:8888                     *:*                   users:(("nc",pid=3256,fd=3))
antoine.pietri@swh-prod:~$ nc 137.204.21.159 8888
test
^C
antoine.pietri@swh-prod:~$ 



Container:


root@orangerie:~# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: ens160: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
    link/ether 00:50:56:94:50:f9 brd ff:ff:ff:ff:ff:ff
    inet 137.204.21.159/24 brd 137.204.21.255 scope global ens160
       valid_lft forever preferred_lft forever
    inet6 fe80::250:56ff:fe94:50f9/64 scope link 
       valid_lft forever preferred_lft forever
3: ens192: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
    link/ether 00:50:56:94:4f:32 brd ff:ff:ff:ff:ff:ff
    inet 10.100.0.11/24 brd 10.100.0.255 scope global ens192
       valid_lft forever preferred_lft forever
    inet6 fe80::250:56ff:fe94:4f32/64 scope link 
       valid_lft forever preferred_lft forever
4: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default qlen 1000
    link/ether 52:54:00:09:66:e1 brd ff:ff:ff:ff:ff:ff
    inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0
       valid_lft forever preferred_lft forever
5: virbr0-nic: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast master virbr0 state DOWN group default qlen 1000
    link/ether 52:54:00:09:66:e1 brd ff:ff:ff:ff:ff:ff




root@orangerie:~# nc -l 137.204.21.159 8888 &
[1] 23
root@orangerie:~# nc 137.204.21.159 8888
(UNKNOWN) [137.204.21.159] 8888 (?) : Connection refused
root@orangerie:~# ss -nltp | grep 8888
root@orangerie:~#