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Greetings
since some days I have an incredible problem: often, surfing internet, totally random the browser still loading for a while and after it shows the OpenDNS's fail page. But, from the other pc behind the same router, that sites are perfectly resolved.. For example with www.hwupgrade.it it happens very often..
The only solution is to wait some seconds and refresh the page.
It happens with any browser, both from gnome and kde, any kernel version. Windows (in dual boot in the same machine) don't have any problems..
I've tryed also my ISP's default dns but this don't fix. Not even using bind in local..
I can't complete any traceroute, also if the site go from browser:
[dvd@abulafia ~]$ traceroute www.google.it
traceroute: Warning: www.google.it has multiple addresses; using 208.69.34.230
traceroute to google.navigation.opendns.com (208.69.34.230), 30 hops max, 52 byte packets
1 www.routerlogin.com (192.168.0.1) 1.954 ms 1.776 ms 2.142 ms
2 192.168.100.1 (192.168.100.1) 39.221 ms 37.675 ms 40.086 ms
3 r-ct30-vl11.opb.interbusiness.it (217.141.250.201) 40.716 ms 37.691 ms 40.244 ms
4 * host53-8-static.184-82-b.business.telecomitalia.it (82.184.8.53) 54.044 ms *
5 151.99.98.178 (151.99.98.178) 62.619 ms 60.681 ms 61.836 ms
6 host181-8-static.20-80-b.business.telecomitalia.it (80.20.8.181) 63.101 ms 60.787 ms 62.323 ms
7 mil30-ibs-resid-3.seabone.net (195.22.192.185) 62.192 ms 64.431 ms 62.080 ms
8 ge-0.de-cix.frnkge03.de.bb.gin.ntt.net (80.81.192.46) 75.688 ms 78.879 ms 76.240 ms
9 xe-1-0-0.r20.frnkge03.de.bb.gin.ntt.net (129.250.2.148) 74.447 ms 77.913 ms 76.683 ms
10 p64-3-3-0.r22.londen03.uk.bb.gin.ntt.net (129.250.2.20) 88.243 ms 85.892 ms 87.835 ms
11 * * *
12 83.231.146.198 (83.231.146.198) 108.067 ms 93.173 ms 90.981 ms
13 * * *
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Help! Thank you!
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Could you post your "/etc/hosts" ?
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[dvd@abulafia ~]$ cat /etc/hosts
#
# /etc/hosts: static lookup table for host names
#
#<ip-address> <hostname.domain.org> <hostname>
127.0.0.1 localhost.localdomain localhost
# End of file
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From the beginners guide
/etc/hosts
This file associates IP addresses with hostnames and aliases, one line per IP address. For each host a single line should be present with the following information:
<IP-address> <hostname> [aliases...]
Add your hostname, coinciding with the one specified in /etc/rc.conf, as an alias, so that it looks like this:
127.0.0.1 localhost.localdomain localhost yourhostname
Note: This format, including the 'localhost' and your actual host name, is required for program compatibility! Errors in this entry may cause poor network performance and/or certain programs to open very slowly, or not work at all. This is a very common error for beginners.
If you use a static IP, add another line using the syntax: <static-IP> <hostname.domainname.org> <hostname> e.g.:
192.168.1.100 yourhostname.domain.org yourhostname
Hope this helps
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I would try disabling ipv6 and see if that helps.
If dns is actually resolving, but you are having issues connecting to some websites, it might actually not be a dns problem..but a tcp problem. If the ipv6 thing doesn't work, you might try disabling tcp scaling and see if it helps at all.
http://wiki.archlinux.org/index.php/Con … leshooting
"Be conservative in what you send; be liberal in what you accept." -- Postel's Law
"tacos" -- Cactus' Law
"t̥͍͎̪̪͗a̴̻̩͈͚ͨc̠o̩̙͈ͫͅs͙͎̙͊ ͔͇̫̜t͎̳̀a̜̞̗ͩc̗͍͚o̲̯̿s̖̣̤̙͌ ̖̜̈ț̰̫͓ạ̪͖̳c̲͎͕̰̯̃̈o͉ͅs̪ͪ ̜̻̖̜͕" -- -̖͚̫̙̓-̺̠͇ͤ̃ ̜̪̜ͯZ͔̗̭̞ͪA̝͈̙͖̩L͉̠̺͓G̙̞̦͖O̳̗͍
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I disabled ipv6 and tcp scaling but the problem remains
Last edited by dvd100 (2008-11-28 12:23:07)
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http://bugs.archlinux.org/task/12215?project=1 If you are running testing this bug may be part or all of your issue.
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I would try disabling ipv6 and see if that helps.
If dns is actually resolving, but you are having issues connecting to some websites, it might actually not be a dns problem..but a tcp problem. If the ipv6 thing doesn't work, you might try disabling tcp scaling and see if it helps at all.
http://wiki.archlinux.org/index.php/Con … leshooting
Ok, solved! Maybe yesterday I've wrote the wrong line in the shell, I don't know exatly. Now it works, after a retry.
This is the command:
echo 0 > /proc/sys/net/ipv4/tcp_window_scaling
Thank you to everybody!
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