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--- docu:csheet:sysadm:venv:docker:netns_exec [2020/10/13 15:23] – created admin
+++ docu:csheet:sysadm:venv:docker:netns_exec [2020/10/13 15:27] (current) – admin
@@ Line 15: / Line 15: @@
 nsenter -t PID -n telnet 2.3.4.5 80
 nsenter -t PID -n iptables -A OUTPUT -d 1.2.3.4 -p udp --dport 53 -j ACCEPT
+nsenter -t PID -n netstat -lptuan
 # or whatever network-related command you want to exec
 </code>
@@ Line 23: / Line 24: @@
 </code>
-Technically, network namespaces are a technology on *nix operating systems that allows to create separated or/and isolated network stacks on the hosts
+Technically, **network namespaces** are a technology on *nix operating systems that allows to create separated or/and isolated network stacks on the hosts, which contains it's own **private set of IP addresses**, it's own **routing table**, socket listing, connection tracking table, **firewall**, and other network-related resources... [[https://en.wikipedia.org/wiki/Linux_namespaces#Network_(net)|source on WikiPedia]]
-\\
-More information on: https://en.wikipedia.org/wiki/Linux_namespaces#Network_(net)

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