Change bandwidth limit during PureFTPd operation

PureftpdIt is a fast, high-quality, and fully functional ftp server. The most important thing is that it supports setting the Default Client encoding. Pureftpd is very powerful and useful, this article teaches you how to change the bandwidth limit when running PureFTPd.

Q: Can I change the bandwidth allocation during user transmission and the change takes effect immediately?

A: Unfortunately, no. at least pure-ftp cannot be used. in this way, you have to constantly read user parameters, which is too slow. other mechanisms may run, such as sending signals to interrupt transmission, re-reading parameters, and then Resuming transmission. however, this will increase the complexity of the Code.

If you use modern operating systems such as OpenBSD, ISOS, or Linux, the kernel contains a very good TCP/IP transport controller. Because it works at the kernel level, you can easily change the bandwidth occupied by some IP addresses or services at runtime. On OpenBSD, ISOS, or FreeBSD 5, check the file pf. conf. on Linux, check tc, or read linux networking how-.

For more information, see the global bandwidth limit section.

Through the introduction of this article, we all know that it is impossible to change the bandwidth limit immediately. You can only perform a small operation! I hope this article will be useful to you!