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This article mainly introduces the slow landing speed of Proftpd how to do, the introduction in the article is very detailed, has a certain reference value, interested friends must read!

Proftpd landing speed is slow.

A strange phenomenon is found in the process of using proftpd as a ftp server. Users log in to this ftp very slowly, but they are very fast once they are logged in. Moreover, it is fast to land on this machine, but slow on other machines in the laboratory.

After consulting the FAQ of proftpd's official website, it is found that proftpd will carry out DNS reverse search and ident search on logged-in users under the default configuration. Because most of the hosts in the network do not have DNS names, and many only have LAN addresses, this query is a failure. Failed queries take a lot of time, so login becomes very slow.

The solution is simple, as long as cancel DNS reverse search and ident search. Add the following lines to the configuration file of proftpd:

UseReverseDNS off IdentLookups off above is all the content of this article "what if Proftpd login is slow?" Thank you for reading! Hope to share the content to help you, more related knowledge, welcome to follow the industry information channel!

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