1
vote
1answer
273 views

Can IP tables allow specific DNS queries based on domain name?

I have iptables blocking all UDP traffic at the moment, however I want to allow only certain DNS queries to get through. Let's use google.com as an example. I am trying to use string matching to ...
5
votes
2answers
127 views

Effects of internet connection speeds on server queries

Can my internet connection significantly effect queries run on phpmyadmin? I am currently 18 down and 30 up. I switched internet connections today and noticed a deep drop in query performance. The ...
8
votes
3answers
5k views

How to automatically kill slow MySQL queries after N seconds?

I am looking for a well tested bash script (or alternative solution) to do so, in order to avoid max_connection to be exhausted. I know that it is fighting the symptoms, but really need such script as ...
0
votes
2answers
461 views

Querying a LINUX DHCP server in C#

I have a very large network say Class A. I have Linux DHCP and Microsoft DHCP servers deployed. I am successful in querying Microsoft DHCP server but Is there any way to Query LINUX DHCP server to get ...
0
votes
2answers
167 views

Is there a way to find out the detailed statistics of the querys that processed by Mysql?

The load average of my service is high, always around 15. And the reason for that is the Mysql is overloaded. I'm wondering How Can I find out which specific query/script consume the most Mysql ...
0
votes
1answer
332 views

MySQL 5.1 Slow SHOW DATABASES (phpMyAdmin)

We have about 200 databases and since upgrading from 4.1 to 5.1 we've noticed that PHPMyAdmin takes a while to load the left navigation sometimes. Is there anything we can do to make this quicker? ...
0
votes
1answer
786 views

Restrict “Authority Section” on BIND

I just switched from Microsoft DNS to BIND 9.3 for a DNS acting as a Caching Nameserver. Previously when I used "dig" to perform a lookup...I just got the "QUESTION" & "ANSWER SECTION" with ...