How Do I Set Permanent Permissions in Linux?

Usually the command you used should change the permissions permanently. Try sudo chmod -R 775 /var/www/ (which basically is the same). If that doesn’t work you might need to change the owner [and maybe the group] of the directory via sudo chown [:] /var/www/ .

How do I set default permissions in Linux?

By default, when you create a file as a regular user, it’s given the permissions of rw-rw-r–. You can use the umask (stands for user mask) command to determine the default permissions for newly created files.

Is chmod permanent?

1 Answer. You can’t make it permanent, but you can automate the chmod command at boot-time by putting it in /etc/rc.