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nsenter:tldr:c51ae
nsenter: Run a specific command in an existing process's network namespace.
$ nsenter --target ${pid} --net ${command} ${command_arguments}
try on your machine
The nsenter
command is used to run a command with a different Linux namespace. Namespaces provide isolation for various system resources such as processes, network interfaces, mount points, etc. By using nsenter
, you can enter a specific namespace and execute a command within that namespace.
The command nsenter --target ${pid} --net ${command} ${command_arguments}
has the following components:
${pid}
: This is the Process ID (PID) of the target process whose namespace you want to enter. It specifies the namespace to be targeted.--target
: This option is used to specify that we want to enter the namespace of a particular target process identified by its PID.--net
: This option indicates that we want to enter the network namespace specifically. With--net
, we enter the network namespace of the target process.${command}
: The command you want to execute within the specified namespace. It can be any valid command or executable.${command_arguments}
: The arguments or options that need to be passed to the${command}
while executing it within the specified namespace.
Overall, the given command instructs nsenter
to enter the network namespace of the process identified by ${pid}
and then execute ${command}
with the specified ${command_arguments}
within that network namespace.
This explanation was created by an AI. In most cases those are correct. But please always be careful and
never run a command you are not sure if it is safe.