Downtime For Installing Packages?
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Is there downtime for installing packages? There are two packages I'd like to install but need to make sure if there will be downtime or not.
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Which packages? Generally I'd say the answer is no, but some may do things like restart Unbound or something like that.
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@teamits squid & suricata
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I've installed Suricata and not had any issues. In fact it installs disabled until you turn it on. I haven't installed Squid.
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If you install new packages on a production firewall it should not cause downtime. However, if you are updating packages on a production firewall, those services related to the packages will be unavailable for a short period. If you have SquidGuard working for example, and decide to update the package, the squid service will be restarted and squid will stop blocking pages for a short period, usually less than a few minutes.
I always have 2 firewalls in HA Sync, and when I do updates I will swap production firewalls and only work on the standby firewall. I also make it a habit to reboot the firewall after installing or updating a package as I've had issues updating squid/squidguard in the past.