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Processes scope and visibility

421 bytes added, 04:13, 17 December 2011
document kernel.pid_ns_hide_child=1
From [[CT0]] one can see all the processes running on the system; that
includes all the processes of all [[container]]s and the processes of the
[[host system]] itself. Sometimes you just want to see the processes from thehost system only. Sometimes you just want to see the processes from a
particular container.
== Solutions ==
 
=== Hide container processes from host completely ===
 
It is possible to hide other CT's processes from [[CT0]]. For this just enable kernel.pid_ns_hide_child sysctl parameter:
 
sysctl -w 'kernel.pid_ns_hide_child=1'
 
and restart all containers. To make setting permanent put into /etc/sysctl.conf following line:
 
kernel.pid_ns_hide_child=1
 
After this ps or htop or top do not show anymore other container processes.
 
=== "Poor man's vzps in bash" ===
2
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