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Pekka Ekman 2d114a8330 Add license and README 8 years ago
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README.md

netns-exec

Runs command in Linux network namespace as a normal user. Does essentially the same as sudo ip netns exec <netns> sudo -u "$USER" <command>, but doesn't require sudo privileges or password.

This is a simple suid root program built around the code of ip netns exec command of iproute2 utility suite. The iproute2 source is embedded in this git repository as a submodule.

Usage

Run command:

netns-exec [--] <netns> <command> <args>...

Start shell:

netns-exec [--] <netns>

Show help:

netns-exec -h
netns-exec --help

Building and installing

git submodule update --init
make
sudo make install

Security note

This program is installed as suid root. Normally, only root can execute anything in a different network namespace. This program intentionally bypasses this restriction and should not be installed in a machine where this is a problem.