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Old 09-07-2012, 10:47 AM   #1
austinium
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Registered: Nov 2007
Location: India
Distribution: Debian Stable, Debian Testing
Posts: 218

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Extremely slow internet browsing on debian 6


I have two computers, one running Windows 7 and the other running Debian 6. Internet browsing is extremely slow on the machine running debian, while it is normal on the machine running Windows 7, so it isn't a problem with my ISP.

IP addresses are set to DHCP while the DNS IP Addresses are static, the settings have been done using network-manager/network-manager-gnome
I am pasting the output of commands which i think will be of interest:
ping
Code:
debi@n:~$ ping www.linuxquestions.org
PING www.linuxquestions.org (75.126.162.205) 56(84) bytes of data.
64 bytes from www.linuxquestions.org (75.126.162.205): icmp_req=1 ttl=50 time=313 ms
64 bytes from www.linuxquestions.org (75.126.162.205): icmp_req=2 ttl=50 time=299 ms
64 bytes from www.linuxquestions.org (75.126.162.205): icmp_req=3 ttl=50 time=310 ms
64 bytes from www.linuxquestions.org (75.126.162.205): icmp_req=4 ttl=50 time=314 ms
dig
Code:
dig debi@n:~$ dig www.linuxquestions.org

; <<>> DiG 9.7.3 <<>> www.linuxquestions.org
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 55126
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 5, ADDITIONAL: 9

;; QUESTION SECTION:
;www.linuxquestions.org.		IN	A

;; ANSWER SECTION:
www.linuxquestions.org.	983	IN	A	75.126.162.205

;; AUTHORITY SECTION:
linuxquestions.org.	80644	IN	NS	ns4.mydyndns.org.
linuxquestions.org.	80644	IN	NS	ns5.mydyndns.org.
linuxquestions.org.	80644	IN	NS	ns1.mydyndns.org.
linuxquestions.org.	80644	IN	NS	ns2.mydyndns.org.
linuxquestions.org.	80644	IN	NS	ns3.mydyndns.org.

;; ADDITIONAL SECTION:
ns1.mydyndns.org.	238	IN	A	204.13.248.76
ns1.mydyndns.org.	46	IN	AAAA	2600:2001::76
ns2.mydyndns.org.	59271	IN	A	208.76.60.2
ns3.mydyndns.org.	59334	IN	A	208.78.69.76
ns3.mydyndns.org.	35172	IN	AAAA	2600:2003::76
ns4.mydyndns.org.	59338	IN	A	91.198.22.76
ns4.mydyndns.org.	31459	IN	AAAA	2600:2004::76
ns5.mydyndns.org.	31459	IN	A	203.62.195.76
ns5.mydyndns.org.	16158	IN	AAAA	2600:2005::76

;; Query time: 565 msec
;; SERVER: 203.94.243.70#53(203.94.243.70)
;; WHEN: Fri Sep  7 21:10:32 2012
;; MSG SIZE  rcvd: 347
traceroute
Code:
debi@n:~$ traceroute www.linuxquestions.org
traceroute to www.linuxquestions.org (75.126.162.205), 30 hops max, 60 byte packets
 1  * * *
 2  triband-del-59.180.159.254.bol.net.in (59.180.159.254)  23.915 ms  23.957 ms  25.866 ms
 3  triband-del-59.179.0.60.bol.net.in (59.179.0.60)  27.855 ms  31.848 ms  37.861 ms
 4  121.241.98.190.static-delhi.vsnl.net.in (121.241.98.190)  37.883 ms  41.818 ms  43.795 ms
 5  172.29.250.33 (172.29.250.33)  69.729 ms  73.756 ms  75.766 ms
 6  ix-0-100.tcore1.MLV-Mumbai.as6453.net (180.87.38.5)  131.770 ms  111.686 ms  113.636 ms
 7  if-9-5.tcore1.WYN-Marseille.as6453.net (80.231.217.17)  319.816 ms  321.796 ms  321.797 ms
 8  * * *
 9  if-5-2.tcore1.WV6-Madrid.as6453.net (80.231.200.6)  313.864 ms  301.953 ms  301.888 ms
10  if-8-2.tcore2.SV8-Highbridge.as6453.net (80.231.91.26)  305.880 ms  303.745 ms  307.874 ms
11  if-2-2.tcore1.SV8-Highbridge.as6453.net (80.231.139.2)  301.532 ms  303.945 ms  304.013 ms
12  if-6-2.tcore1.NJY-Newark.as6453.net (80.231.138.18)  305.980 ms  305.804 ms  303.824 ms
13  if-2-2.tcore2.NJY-Newark.as6453.net (66.198.70.2)  315.776 ms  315.806 ms  331.990 ms
14  66.198.111.98 (66.198.111.98)  304.003 ms  302.031 ms  309.778 ms
15  Vlan502.icore2.NTO-NewYork.as6453.net (216.6.81.30)  323.940 ms Vlan576.icore2.NTO-NewYork.as6453.net (209.58.26.34)  309.843 ms Vlan575.icore2.NTO-NewYork.as6453.net (209.58.26.62)  311.970 ms
16  66.109.11.126 (66.109.11.126)  301.844 ms  303.861 ms  299.828 ms
17  ae1.bbr01.eq01.chi01.networklayer.com (173.192.18.132)  311.830 ms  313.839 ms  313.846 ms
18  ae20.bbr01.eq01.dal03.networklayer.com (173.192.18.136)  299.858 ms  297.838 ms  301.806 ms
19  ae0.dar01.sr01.dal01.networklayer.com (173.192.18.211)  321.935 ms  321.869 ms ae0.dar02.sr01.dal01.networklayer.com (173.192.18.253)  325.921 ms
20  po1.fcr02.sr04.dal01.networklayer.com (66.228.118.178)  323.980 ms po2.fcr02.sr04.dal01.networklayer.com (66.228.118.182)  323.830 ms  323.803 ms
21  www.linuxquestions.org (75.126.162.205)  295.830 ms  299.888 ms  299.861 ms
what am i missing?
 
Old 09-07-2012, 11:26 AM   #2
craigevil
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Registered: Apr 2005
Location: OZ
Distribution: Debian Sid
Posts: 4,734
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try disabling ipv6.

DebianIPv6 - Debian Wiki - http://wiki.debian.org/DebianIPv6#How_to_turn_off_IPv6

If you use Iceweasel/Firefox you will also want to disable it in about:config

Network.dns.disableIPv6 - MozillaZine Knowledge Base - http://kb.mozillazine.org/Network.dns.disableIPv6

Keep in mind some browsers are faster than others.

I would suggest using Iceweasel/Firefox or Chromium/Chrome.

Does /etc/resolv.conf show the correct nameserver ?
 
Old 09-07-2012, 12:29 PM   #3
austinium
Member
 
Registered: Nov 2007
Location: India
Distribution: Debian Stable, Debian Testing
Posts: 218

Original Poster
Rep: Reputation: 27
i disabled IPv6 in the kernel and browser (iceweasel 15) the connection is still slow.
/etc/resolv.conf shows the right DNS IP addresses

I tried browing from within a VirtualBox Guest/VM running Windows XP - IE6 (bridged network adapter), and browsing was significantly faster than it is on the Host (Debian 6).

My ethernet card is:
Code:
02:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5764M Gigabit Ethernet PCIe (rev 10)
maybe i have the wrong drivers?

I am using a stock Debian Kernel
Code:
Linux n 2.6.32-5-686 #1 SMP Wed Jan 11 12:29:30 UTC 2012 i686 GNU/Linux
what else can i try to browse faster?
 
  


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