Later, we update the reason for the block and the remedial measures to the customer. csf -g xx.xx.xx.xxĪnd, if the IP is blocked, we’ll immediately remove the block and restore the FTP access. For example, we use the below command to determine if the customer’s IP address xx.xx.xx.xx is blocked. Also, ISPs can block the normal outbound FTP traffic.įirstly, our Support Experts ensure that the customer’s IP address isn’t blocked in the remote server. We’ve seen cases where third party firewall or antivirus on the system blocking FTP connections. Similarly, another possibility is that the user is being blocked from making outbound connections either at the ISP end or at their local firewall. The IP can be blocked due to abnormal activities, too many connections, etc. We’ve seen instances where the remote server blocks connections from an IP address or IP address range. On the other hand, on Plesk servers, we change the hostname from Tools & Settings > Server Settings.Īnother probable reason for this error is the incorrect firewall configurations or firewall restrictions. Most importantly, we restart the network service to reflect these changes. If ping doesn’t respond, we add the correct hostname in the following server configuration files. Here, our Support Experts first check the connectivity to the FTP host using the ping command. getaddrinfo 'Hostname_Is_Here' error: Name or service not known warning: unable to determine IP address of ' domain How we fix?
And, the server log s(/var/log/messages) show this error. This error can occur when the FTP server can’t determine the IP address of the server by the hostname. Now, let’s discuss the common reasons for this error and how our Dedicated Engineers fix them. FTP clients such as Filezilla returns the error like this: 421 Service not available, remote server has closed connection.įTP error 421 service not available – Causes & Fixes But, this condition is temporary, and the action may be requested again.Īnd, FTP error 421 service not available means that the connection to the remote server can’t be established.
Filezilla failed to create listen socket code#
Today, let’s discuss the top 3 reasons for this error and how we fix them.įTP error 421 service not available – A Quick GlanceįTP error code 4xx means that the connection hasn’t been attempted and the requested action hasn’t taken place. One such FTP error is “ 421 service not available“.Īt Bobcares, we help server owners resolve such FTP errors as part of our Dedicated Support Services. And, it becomes more troublesome when you spend the whole day resolving these errors.
0 kommentar(er)
