Can ping, can use host, cannot http to some websites

[linuxlen]

Hello,

I can browse the internet using Firefox, but only to some websites. It is consistent which ones I can get to as well.

I cannot get to Adobe or Yahoo. Due to this I cannot setup Yum with the Adobe repo. There are countless other websites I cannot access either. However, there are PLENTY of websites I can access. This has happened since I installed FC10 and has persisted through all updates.

I can ping Adobe and Yahoo and get responses. Its just web surfing and Yum and some other apps that have problems accessing some internet addresses.

Any help or thoughts anyone can offer is greatly appreciated. Any troubleshooting steps or things to try would be very helpful :)

BTW, everything works fine from another computer on my network.

Thanks!
Lenny

[Zotter]

as root in a console

vim /etc/resolv.conf

change the nameservers to:

208.67.222.222
208.67.220.220

Those are the openDNS name servers - see if that makes any difference.

[linuxlen]

Hi Zotter,

Unfortunately this did not work. I tried restarting network services too. I should also mention that I have removed the Network Manager, so I am just using the Network service.

What happens is if I go to www.yahoo.com in Firefox it gets to the point where it just says "Waiting for www.yahoo.com".

Thanks for trying though. Any other thoughts?

Thanks,
Lenny

[nlhkha]

I have the same problem. I had to install FC10 4 times in 2 days because of this. First I did a total update, and I used the newer kernel, which is 2.6.27.9-159 fc10. Later I just did a few updates, but I noticed that this happens when the new kernel is install. I have not tried to remove the kernel (if it is possible) yet.
A few signs of the issue are:
1. Firefox cannot browse most popular website, like yahoo or google, or adobe. Thanks god I can still access my homework site.
2. Pidgin cannot login to MSN

I switched to ubuntu for a while, and I also did a total update. Firefox in ubuntu works fine, but pidgin has the same problem with the new ubuntu kernel. I don't know if the kernels are related between ubuntu and fedora.

Any help is appreciated. I am very new to the linux world. I started using it because I just enrolled CSE dept, and this is what I have to do. So far I enjoy the experience, but I dont like the feeling of being aware of updates when they are listed as stable.

[David Becker]

Hello,

I can browse the internet using Firefox, but only to some websites. It is consistent which ones I can get to as well.

I cannot get to Adobe or Yahoo. Due to this I cannot setup Yum with the Adobe repo. There are countless other websites I cannot access either. However, there are PLENTY of websites I can access. This has happened since I installed FC10 and has persisted through all updates.

I can ping Adobe and Yahoo and get responses. Its just web surfing and Yum and some other apps that have problems accessing some internet addresses.

Could be TCP Window scaling, TCP timestamps or a question of using TCPMSS in your router/firewall. Scaling and timestamps can be controlled on your host with 'sysctl' while TCPMSS is controlled on your router using (man) iptables.

David