Update prerequisite-system.md

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Peter 2021-02-13 21:38:03 +01:00 committet von GitHub
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@ -44,9 +44,9 @@ We can help to correctly plan your setup as part of our support.
Please check if any of mailcow's standard ports are open and not in use by other applications: Please check if any of mailcow's standard ports are open and not in use by other applications:
``` ```
ss -tlpn | grep -E -w '25|80|110|143|443|465|587|993|995|4190|5222|5269' ss -tlpn | grep -E -w '25|80|110|143|443|465|587|993|995|4190|5222|5269|5443'
# or: # or:
netstat -tulpn | grep -E -w '25|80|110|143|443|465|587|993|995|4190|5222|5269' netstat -tulpn | grep -E -w '25|80|110|143|443|465|587|993|995|4190|5222|5269|5443'
``` ```
!!! warning !!! warning