[CentOS] centos email server suddenly much slower. What to do?

[Steve Clark]

On 09/06/2012 01:58 PM, Marco Fioretti wrote:
> 2011 msec

Pretty slow my dig to the same server ran in 113 msec

dig www.google.it @213.179.193.200

; <<>> DiG 9.7.4-P1-RedHat-9.7.4-2.P1.fc14 <<>> www.google.it @213.179.193.200
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 17288
;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 4, ADDITIONAL: 0

;; QUESTION SECTION:
;www.google.it.                 IN      A

;; ANSWER SECTION:
www.google.it.          230     IN      A       173.194.35.152
www.google.it.          230     IN      A       173.194.35.159
www.google.it.          230     IN      A       173.194.35.151

;; AUTHORITY SECTION:
google.it.              10079   IN      NS      ns3.google.com.
google.it.              10079   IN      NS      ns4.google.com.
google.it.              10079   IN      NS      ns1.google.com.
google.it.              10079   IN      NS      ns2.google.com.

;; Query time: 113 msec
;; SERVER: 213.179.193.200#53(213.179.193.200)
;; WHEN: Thu Sep  6 14:07:38 2012
;; MSG SIZE  rcvd: 161

-- 
Stephen Clark
*NetWolves*
Director of Technology
Phone: 813-579-3200
Fax: 813-882-0209
Email: steve.clark at netwolves.com
http://www.netwolves.com