7080 not available after some time - how can I debug?
in Web Server
The server has 4 cores and 8 GB RAM, about 10 Joomla sites, different versions, 3-4 of them with lscache plugins. PowerDNS, Postfix, FTP, CSF and modsecurity are enabled.
After sometime OLS is not accessible at 7080 port. I can access CP on 8090 and restart it, so it is functional again.
What can be the reason? Where should I look?
After sometime OLS is not accessible at 7080 port. I can access CP on 8090 and restart it, so it is functional again.
What can be the reason? Where should I look?
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> You have to add port 7080 to csf (ipv4 port settings) then restart csf for some reason it is not incuded as default.
As some will never require access to it I presume. Which is a part of PCI compliance never have ports that may not be required.
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It was the first thing I did during setup. It is needed (for me) for (1) learning (2) fine-tuning (3) detailed inspection of connections during testing. I may close it afterwards. CP does not replicate OLS panel (it shouldn't).
The problem is: it becomes inaccessible after some time - a rather random period.
I read about "number of open files" problem in multiple places, did some touches but I don't know what to look to debug.
> I already opened 7080 port in CSF and it is accessible (for some time).
> It was the first thing I did during setup. It is needed (for me) for (1) learning (2) fine-tuning (3) detailed inspection of connections during testing. I may close it afterwards. CP does not replicate OLS panel (it shouldn't).
>
> The problem is: it becomes inaccessible after some time - a rather random period.
> I read about "number of open files" problem in multiple places, did some touches but I don't know what to look to debug.
>
Problem with your OLS. Could be open files. Refer it to openlitespeed forum for tech support there.
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https://openlitespeed.org/kb/too-many-open-files-errors-how-to-increase-the-operating-system-file-descriptor-limit/
I doubled the first limit (ulimit) from 65535 but it happened again. I need to experiment on it examining the logs in realtime before asking in OLS forums. Probably I'll need to use Apache load test - one more sleepless night :(
Thank you for redirect @hennaboy :)