Disclaimer: I'm pretty novice at sysadmin stuff.
I'm trying to set up port forwarding in an AWS EC2 instance, this has to be done in the command-line because I don't want to go in and edit anything, it has to be automatic (it's part of a build process).
sudo echo "net.ipv4.ip_forward = 1" >> /etc/sysctl.conf
Permission denied
The weird thing is I've been (successfully) using sudo
for pretty much every command that required su
privileges. If I do sudo su
before the command (trying it out by hand in an ssh
session), then it works.
Reasons behind this? Possible solutions that don't involve sudo su
or manual edits?
Best Answer
You can't use
sudo
to affect output redirection;>
and>>
(and, for completeness,<
) are effected with the privilege of the calling user, because redirection is done by the calling shell, not the called subprocess.Either do
or