Is var log persistent?

Is var log persistent?

The default storage type in journald. conf is “auto”. In auto storage type the journal logs will not be persistent and will not survive reboots.

How do I save a log file in Linux?

Linux systems typically save their log files under /var/log directory. This works fine, but check if the application saves under a specific directory under /var/log . If it does, great. If not, you may want to create a dedicated directory for the app under /var/log .

What is var log in Linux?

The main log file a) /var/log/messages – Contains global system messages, including the messages that are logged during system startup. There are several things that are logged in /var/log/messages including mail, cron, daemon, kern, auth, etc.

How do I get Cisco MDS switch logs?

Solution

1. Enter the IP or hostname of the Cisco or Brocade switch:
2. Make sure logging is turned on for “All session output” and then save the resulting putty.log file to a location of your choice.
3. For Brocade run the command supportshow.
4. For Cisco run the command show tech-support details.

What is non persistent storage?

Non-persistent storage: Your data can be removed when the container, the worker node, or the cluster is removed. Non-persistent storage is typically used for logging information, such as system logs or container logs, development testing, or when you want to access data from the host’s file system.

How are files created in / var / run on each reboot?

So any boot services like mysqld, which is a daemon which is started at boot time, that create files in /run, will also have files visible in /var/run (symlink to /run remember). If you want to create a file that will persist through a reboot in /var/run, create it in /run and then reboot. Hope this answers your question.

Why is / var / run empty when booting?

That means it’s totally empty when your machine boots and it’s meant to be like this to prevent stuff like daemons not starting because of a left-over PID-file. Startup scripts usually create the directories they need before using them.

Is the / var / run folder persistent in Ubuntu?

Please, do not answer that /var/run is persistent, or that /run is persistent. Because it is NOT. Even if it is so on your system, it is not so on a regular 12.04. (Thanks to @Zulakis and an answer on Serverfault for pointing out that this answer had not kept up with Ubuntu’s ongoing development.)

Is it true that / var / run is persistent?

Please, do not answer that /var/run is persistent, or that /run is persistent. Because it is NOT. Even if it is so on your system, it is not so on a regular 12.04.