> Hello all. > > I have a problem since months with my CentOS 4 webserver. It came up since > I intalled it. > The SSL pages are very slow. Typically, I get 2-3 thumbnails from an SSL > page, and then nothing during 7 seconds, and then again 2 thumbnails, > nothing again, etc.. and so forth during about 30 seconds after what all > non loaded images are just discarded (time out). > It also happens with the normal HTTP, but much less, and is usable. > > I must have done an error in the configuration, but I don't know where. > I have tried taking the ssl.conf, httpd.conf and php.ini from another > clean CentOS server (that does not present this) but after rebooting the > services nothing changes. I don't see anything strange in the logs > neither. It just takes very long to answer a request. > I also tried to stop MySQL and Tomcat, but no chance. > > Did someone already see that kind of behaviour ? > > Kind regards, > Daniel > I came some time ago with an SSL slowness that I didn't figure out (described above). I have just found what the problem was: I was using the LinWiz iptables firewall builder, and this one did set by default to have a limitation for synfloods at 1 syn per second (at the end of the script). This, used with SSL, makes the HTTPS connection transfer speed being very very slow, but not for the HTTP connections. Now I incremented it to 50/s and 100 burst limitation, and all works very well. For those that this might help.. Daniel