Tag: slow
Apache web server slow to respond, Poor performance Ubuntu Linux
by swicknire on Mar.14, 2009, under linux/ubuntu
If you’re finding that when going to your web page it’s taking a little too long to make the connection, or its just running sluggsih – it may be trying to resolve your ip via a DNS lookup.
There are many performance tweaking options to tune your apache configuration, but I’m going to start by handling just this one.
Now by default HostnameLookups should be Off. And can be found in
/etc/apache2/apache2.conf
HostnameLookups Off
But you may also want to add it to the httpd.conf
/etc/apache2/httpd.conf
And restart apache
sudo /etc/init.d/apache2 restart
This may or may not fix your performance issues, but it sure did help me greatly! (Even though it was set to off in the apache2.conf file, adding it to the httpd.conf file increased my performance)
An interesting article you may find useful HERE
SSH Slow to respond for password input (timeout problems) Ubuntu Linux
by swicknire on Mar.14, 2009, under linux/ubuntu
If you find your SSH client is taking too long to connect (and ask you for the password), or you’re trying to SFTP and it’s timing out before the password prompt. It’s probably trying to do a DNS lookup!
It’s a quick and easy fix! Just edit the following file:
/etc/ssh/sshd_config
And add or change the following:
UseDNS no
Restart SSH
sudo /etc/init.d/ssh restart