Safari slow - FireFox fast

I just come U.S from China. I am using school's network now.
the soft update always report error, can not link to the sever. and safari, itunes, quicktime link very slow. just like through a slow proxy. but haven't set any proxy
the firefox works well. skype works well, ichat works well.
my friend told me, maybe is the DNS error. I try to link google by ip and web address with safari. they spent same time, about 3min, while firefox about 1sec.
Mac mini Mac OS X (10.4.5)
==========================
Answer from Michael Bradshaw
Posts: 275
Registered: May 9, 2003
Re: i can't link the update
Posted: Mar 11, 2006 3:04 PM in response to: golden grape
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golden grape - Welcome to the discussions!
DNS problems are very irritating - and some of the hardest to figure out.
Let's start gathering some information to see how things are set up. Open the Network Utility and go to the "Lookup" tab. Pick one or two addresses and look them up. How long does the server report it took to do the lookup (query time). How long did you wait from clicking go?
P.S. sometimes the best thing is to ignore these things for an hour or so - it's often a temporary thing while your DNS server works out the addresses you need. Also - mac OS will cache the addresses - so once you have them - you don't need to wait anymore on DNS to find things. Try to leave your mac on as long as possible - unless you have some bad software or corruption on a disk - the longer it runs, the faster things will get.
golden grape
Posts: 2
Registered: Mar 11, 2006
Re: i can't link the update
Posted: Mar 11, 2006 3:59 PM in response to: Michael Bradshaw
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the lookup follows:
; <<>> DiG 9.2.2 <<>> www.google.com
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 19675
;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 6, ADDITIONAL: 6
;; QUESTION SECTION:
;www.google.com. IN A
;; ANSWER SECTION:
www.google.com. 864 IN CNAME www.l.google.com.
www.l.google.com. 174 IN A 72.14.203.104
www.l.google.com. 174 IN A 72.14.203.99
;; AUTHORITY SECTION:
l.google.com. 63663 IN NS e.l.google.com.
l.google.com. 63663 IN NS g.l.google.com.
l.google.com. 63663 IN NS a.l.google.com.
l.google.com. 63663 IN NS b.l.google.com.
l.google.com. 63663 IN NS c.l.google.com.
l.google.com. 63663 IN NS d.l.google.com.
;; ADDITIONAL SECTION:
a.l.google.com. 69875 IN A 216.239.53.9
b.l.google.com. 65589 IN A 64.233.179.9
c.l.google.com. 69875 IN A 64.233.161.9
d.l.google.com. 69875 IN A 64.233.183.9
e.l.google.com. 70669 IN A 66.102.11.9
g.l.google.com. 7812 IN A 64.233.167.9
;; Query time: 7 msec
;; SERVER: 136.165.253.10#53(136.165.253.10)
;; WHEN: Sat Mar 11 15:53:47 2006
;; MSG SIZE rcvd: 276
===============
The problem exists about 1 week already.
i can link to google with firefox very quickly. but very slow with safari.
Mac mini Mac OS X (10.4.5)
Michael Bradshaw
Posts: 275
Registered: May 9, 2003
New! Re: i can't link the update
Posted: Mar 11, 2006 4:30 PM in response to: golden grape
Click to reply to this topic Reply email Email
7ms! Your DNS server is a lot faster than mine.
I can confidently say that you don't have DNS problems. If you had DNS problems - firefox and Network Utility should be equally slow. This really has nothing to do with mini hardware either.
It would be best to ask a new question titled "Safari slow - FireFox fast" in the Safari group. I'm sure a lot of people there will have good ideas to find out what causes safari to go slow when firefox can browse the same site with speed.
http://discussions.apple.com/category.jspa?categoryID=169
One things I can suggest is:
* Temporarily change your Safari preferences to open the bookmarks or a blank page. You will know if safari is waiting on something locally or the web page is drawing slowly. I doubt this is it - but you never know until you try to narrow down what exactly is slow.

I am using school's network now.
Does the same thing happen if you connect to the internet through 'normal' means, such as a home internet connection (broadband, dialup etc), or does it just happen at school?
Matt

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