Register with NO-IP for free dynamic DNS (Steps 1 and 2) DYNDNS = “300” would check for IP updates every 5 minutes) and set DYNDNS_IGNORE = “1” to always ignore DYNDNS IP addresses in lfd blocking Open “csf.conf” and set DYNDNS to whatever interval you’d like the check for a new IP to run ( e.g.Open “csf.dyndns” and add the hostname of your no-ip account.Install the Dynamic Update Client from No-IP on your computer and connect it to the account you just created.Underneath the quick overview, we will discuss each of the steps in detail. Luckily, there is software that can help.ĭynamic DNS is a software that integrates nicely with CSF/LFD firewall that effectively whitelists dynamic IPs. We would have to temporarily whitelist the current IP assigned to us each time it changes and knowing each time it changes is unlikely. We don’t want to end up with a large number of IPs whitelisted … IPs that the ISP has since assigned to someone else (someone that could potentially have unlimited access to our server). But, without a static IP, this option isn’t exactly wise. Thus, many opt to whitelist their IP in the firewall. These situations can happen to any of us and result in a firewall block. Its not that they are logging in 40 times with the wrong password, but rather they’ve simply exceeded the firewall’s max_connections while developing their sites, or they’ve updated their email account’s password as they should often do, and forgotten to update it also in their mail client, which is repeatedly attempting to access that account on the server using the old credentials. ISP’s constantly change their IP, and for one reason or another, they get blocked by their server’s firewall. Configure CSF/LFD for DynDNS (Steps 4-6)ĭynamic DNS offers a resolution to a common problem that many users have.Register with NO-IP for free dynamic DNS (Steps 1 and 2).
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