How can I empty the ufw log file

Question

Is there a way I can purge (empty) the ufw log file (located in /var/log/ufw.log?

I tried rm but it didn't work.

I tried to stop ufw and delete the file but I couldn't do it.

Everybody talks about log level but nobody explains how to empty this file...

chili555 · Accepted Answer · 2018-04-08 12:50:50Z

2

As @muclux correctly points out, system files are usually removable only with administrator privileges; e.g. sudo. This command will remove the file:

sudo rm /var/log/ufw.log

Verify:

ls /var/log

answered Apr 8, 2018 at 12:50

chili555

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After removing that file, the logging stops to work until I restart Rsyslog with sudo service rsyslog restart. To avoid that you could empty the file without removing it by doing cat /dev/null | sudo tee /var/log/ufw.log.
– Jean Paul
Nov 9, 2020 at 18:10

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Zanna · Accepted Answer · 2021-11-30 08:44:16Z

0

Using administrator privileges on the tee command as Jean Paul's comment pointed out will write over the file such that it becomes empty

cat /dev/null | sudo tee /var/log/ufw.log

sudo echo >/var/log/ufw.log does not work, as the sudo only applies to the echo and not to the output redirection >

Zanna♦

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answered Nov 29, 2021 at 22:58

ComradeJoecool

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2 Answers 2