Hi there ,
I have installed CSF on a server but with no reason someones are unable to open the websites hosted on the server
the IP of those clients are not denied in csf but it is necessary to make their IP allowed to get them accessing to the server
in some cases they can open and see the website but after opening some pages they can not access to the websites any more although their IP is not denied in csf !!
is there any solution !?
To increase the connection limit, you need to modify the CSF configuration (/etc/csf/csf.conf) file and find the CT_LIMIT value. Then, simply change it to your desired preference. A good starting point would be 300-400
Just a quick note: this can also happen if you've got your configuration cranked up too high -- examples being the Low/Medium/High presets. For example, the 'high' level configuration invokes SMTP_BLOCK and disables SMTP_ALLOWLOCAL which heavily restricts things like webmail as outgoing SMTP connections from localhost are being blocked at that point.
A similar setting somewhere in CSF could have the same impact -- legitimate access attempts might be getting blocked because of something being set too high (LF_PERMBLOCK comes to mind -- if the settings are too tight, it's going to block legit requests and sit in the temporary I.P. ban for as long as defined by LF_PERMBLOCK_INTERVAL, which would explain the 100something temporary bans which @Ethernet Servers suggested earlier.
If you're using cPanel with one of CSF's example configs, try the "medium" level if you must, otherwise you may have to dig through the csf.conf in order to track down which setting is creating the problem, should it continue.
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