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View Full Version : Verrry slow internet connection


u-noneinc-s
2006-06-12, 02:14 PM CDT
I am having a "hopefully" temporary DNS problem. I use a friend as my primary DNS and my ISP (SBC) as 2nd and 3rd. Resolution is generally very quick with my friend, but he seems to be down so I was experiencing a lot of lag I guess from trying his DNS and not finding it so going to the 2nd (and maybe 3rd), so I re-orderd them. I now have my ISP 1st and 2nd and my friend as 3rd. I made the change with webmin, saved and applied so I figured it should have taken effect immediately, but right now it's taking about 10 min (or more) for yumex to load the repos. It takes as much as a minute and a half for Fedoraforum.org to load so the lag is still there.

I checked /etc/resolv.conf, and the DNSs have indeed been re-ordered. Any thing else I can do? Shouldn't "apply" in webmin have taken effect right away or do I need to restart something.

This is not the first time my friend has been down, and anytime he goes down (for any length of time) I try changing DNSs around but it never matters. I'm always very slow til he is back up and running. And the difference is like night and day.

Could ISP DNS actually be that "busy" that they would be that slow compared to a friend who has essentially no DNS "load"?

Jman
2006-06-12, 07:56 PM CDT
Install bind-utils and run dig against both your friends and your ISP's servers. See if the difference is that big.

u-noneinc-s
2006-06-12, 08:37 PM CDT
I have bind utilities, and I use dig often (mainly when I update my IP to his named service zomemap), but I never thought to use it for that. I'll have to wait til he's back up and running though.

I was more or less wondering if there was a servise that needed restarting or if a reboot was required for the DNS change to take effect (I hate rebooting :rolleyes: :p ).

Thanks for the suggestion though and I will try it as soon as I can.

bassiscotta
2006-06-13, 09:47 AM CDT
did you solve your problem?

u-noneinc-s
2006-06-13, 12:30 PM CDT
No I haven't, but I'm wondering if it could be my "search domain" in resolve.conf. I have my_domain.us as the search domain, and when my friends system goes down, my domain "no longer exists" since he supplies the zone map for it.

dig mydomain.us gets nowhere. Times out

u-noneinc-s
2006-06-13, 10:17 PM CDT
Well, it turns out it was my domain in /etc/resolv.conf. I commented it out and my speed is back up to normal.

I don't know why I didn't realize it before. :rolleyes: Since my domain is non-existent when my friend goes down, it's never going to be found. man resolv.conf said if the doman is absent it will use the localhostname from the gethostname command (or something like that).
:cool: :D