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Security Onion Update Procedure
soup - Security Onion UPdate
We recommend using our
soup script to update.
Soup will automatically install all available updates (from both Ubuntu and Security Onion).
Please pay attention to the output of this command as it may request that you take specific action, such as manually restarting services. Also refer to the relevant blog entry for the update as there may be additional information there: http://blog.securityonion.net
Snort package upgrades will back up each of your existing snort.conf files to snort.conf.bak and migrate your HOME_NET and EXTERNAL_NET variables.
Suricata package upgrades will back up each of your existing suricata.yaml files to suricata.yaml.bak and migrate your HOME_NET and EXTERNAL_NET variables.
You'll then need to do the following:
- re-apply any other local customizations to your snort.conf/suricata.yaml file(s)
- update ruleset and restart Snort/Suricata as follows:
Bro package upgrades will attempt to migrate your Bro config. You should double-check your config and see if there is any local customizations that you need to manually re-apply. Then restart Bro as follows:
sudo nsm_sensor_ps-restart --only-bro
If you're running an older 14.04 release, you may need to manually upgrade your HWE stack.
Initiating an update over SSH
If you're updating your Security Onion box over an SSH connection and your connection drops, then your update process may be left in an inconsistent state. It is therefore recommended to run
byobu so that your session will continue to run on the Security Onion box even if your connection drops.
Byobu is very handy and we recommend running it all the time to avoid forgetting about it before an update.
# install byobu sudo apt-get install byobu # enable byobu byobu-enable # you're now ready to update
For more information about
byobu, please see:
If you have a distributed deployment with a master server and separate sensor boxes, always update the master server first before updating sensors.
soup to Update your entire Deployment
Standard Ubuntu package management tools
soup command described above is the recommended method to install updates. However, you can use standard Ubuntu package management tools to update ALL packages (Ubuntu and Security Onion), but there are some caveats to be aware of:
MySQL - if you've already run Setup, please see the recommended procedure for updating the MySQL packages.
PF_RING and new kernel packages You may be prompted to update your kernel packages and PF_RING at the same time. If you do so, the PF_RING kernel module may get built for your current kernel and not for the newly installed kernel and upon reboot services will fail. To avoid this, you should install just the PF_RING kernel module by itself and then install the kernel and any other remaining package updates. Here's a one-liner that will do that:
sudo apt-get update ; sudo apt-get install securityonion-pfring-module ; sudo apt-get dist-upgrade
If you accidentally install both the kernel and PF_RING packages at the same time and then reboot and find out that PF_RING services (Snort and Suricata) are failing, you can reinstall the
sudo apt-get install --reinstall securityonion-pfring-module
Security Onion 12.04
Please note: If you're still running the old Security Onion 12.04,
soup will continue to install Ubuntu updates until Ubuntu stops releasing updates for 12.04. However, there won't be any more Security Onion updates for version 12.04 as all development will be on version 14.04 moving forward. Please see the bottom of this page for information on upgrading from 12.04 to 14.04.
To upgrade from Security Onion 12.04 to Security Onion 14.04, please see Upgrading-from-12.04-to-14.04.