Peter Tan wrote:
I'm using djbdns.
2 lines in resolv.conf:
search myservername.com <http://myservername.com>
nameserver 127.0.0.1
dig qmailtoaster.com <http://qmailtoaster.com>
; <<>> DiG 9.3.4-P1 <<>> qmailtoaster.com <http://qmailtoaster.com>
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 47062
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;qmailtoaster.com <http://qmailtoaster.com>. IN A
;; ANSWER SECTION:
qmailtoaster.com <http://qmailtoaster.com>. 86400 IN A
216.81.238.95
;; Query time: 1301 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Wed Sep 2 19:50:32 2009
;; MSG SIZE rcvd: 50
dig google.com <http://google.com>
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 18032
;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;google.com <http://google.com>. IN A
;; ANSWER SECTION:
google.com <http://google.com>. 300 IN A
74.125.67.100
google.com <http://google.com>. 300 IN A
74.125.45.100
google.com <http://google.com>. 300 IN A
74.125.127.100
;; Query time: 261 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Wed Sep 2 19:52:01 2009
;; MSG SIZE rcvd: 76
dig yahoo.com <http://yahoo.com>
; <<>> DiG 9.3.4-P1 <<>> yahoo.com <http://yahoo.com>
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 2661
;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;yahoo.com <http://yahoo.com>. IN A
;; ANSWER SECTION:
yahoo.com <http://yahoo.com>. 21600 IN A
209.131.36.159
yahoo.com <http://yahoo.com>. 21600 IN A
209.191.93.53
yahoo.com <http://yahoo.com>. 21600 IN A
69.147.114.224
;; Query time: 130 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Wed Sep 2 19:53:38 2009
;; MSG SIZE rcvd: 75
Pop3 and SMTP slow during session/transfer, especially with attachments.
Either you have a real slow Internet connection, or something is going
on with your DNS.
The item to note is the "Query time". For qmailtoaster.com I get 20ms.
For google.com I get 15ms. For yahoo.com I get 5ms. I tried from 3 other
servers as well (spread across the United States, on both coasts) and
the highest result I had was 70ms.
Your best one was 130ms, and Yahoo runs a *fast* DNS network.
Try doing a file transfer on that machine as well - if everything is
slow then you may have a network issue or some other underlying issue.
