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Well, I've had my linksys router set up with the 2 opendns servers now for a couple months, and well; I just went to go change my password in my router and noticed something.
On my "Overview" tab, there are 3 "DNS" fields (available to enter up to 3 DNS server addresses).
I had the 3rd one set to 0.0.0.0; err, I should say Linksys did anyways, since I never filled it in. But when I looked at the Status/Administrator pane in my router's config; I noticed it had my ISP's DNS server listed as the 3rd DNS server; even though I had it set to 0.0.0.0.
So, I went in and changed it to 1.1.1.1 instead.
Will this affect my DNS performance at all? Or should I just set that 3rd slot back to 205.152.144.23? After setting it to 1.1.1.1, Saving, and then reloading the router > Status panel, it set the 3rd slot to 1.1.1.1 but when I went back and set it to 0.0.0.0, it set it back to 205.152.144.23...
lol, I it has a mind of it's own...? haha. Unless related in part due to me having PPPoE set up in the router...so it autofills in that last available slot with my ISP DNS...? hehe. -
Having 1.1.1.1 is likely to cause delays randomly on some lookups if it picks 1.1.1.1 for the lookup.
I would set the 3rd to the same as the first:
IE:
1) 208.67.222.222
2) 208.67.220.220
3) 208.67.222.222
If it allows duplicate nameservers.
Tom - www.mouselike.org -
- CommentAuthordougielawson
- CommentTimeFeb 18th 2007
I run a local DNS. So that my home machines get nice addresses. My Linksys AG241 is the NAT gateway between my LAN and the big wild internet. My DNS has the OpenDNS servers defined as forwarders.
So I have
10.1.1.2
208.67.222.222
208.67.220.220
That means if my Linux box is offline for any reason we'll all still be able to resolve names by going directly to OpenDNS.
Having 0.0.0.0 or 1.1.1.1 doesn't matter unless both 208.67.222.222 AND 208.67.220.220 fail to answer. That's so unlikely you don't need to worry about it.
I like Tom's answer, but I don't think it matters. -
ok, it seems like it accepts duplicate DNS addresses, so I just set the third the same as the first ;)
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I tried this and unfortunately it's made permanent changes that I can't seem to undo! Once you put OpenDNS numbers into the router, there's no way to put the zeros back in. You get an error saying the number 0 is out of range 1-254. This means once you use OpenDNS you can't go back to your ISP's automatic routing. I've reset the router a couple of times and it doesn't work. There's no option using PPPOE to automatically get the DNS IPs on my BEFSR41 v.2. I guess I'll have to reset to factory values if I want to stop using OpenDNS. This is a real pain!
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I did a factory reset and it repopulated my DNS with zeros. I had to re-enter all my data and passwords to get my router back to it's operating status. Then I renewed my DHCP lease to reset my DNS in Windows and everything was restored. Before I re-entered OpenDNS, I decided to try a little surfing and I found that the PacBell (SBC/ATT) servers are every bit as fast as the OpenDNS servers. Moreover, I was able to access sites that were unavailable with OpenDNS a few minutes ago. I don't know if they were having trouble or if the DNS servers were having trouble. In any case, I find no improvements using OpenDNS over my ISP. Since I have a dynamic address, rarely misspell my URLs and have several other phishing protections, I've decided to stop using OpenDNS and remain consistent with my ISP... unless there's a reason I'm missing.
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Which sites were unavaibale with OpenDNS? Chances are they probably just needed to be refreshed in the cache. http://cache.opendns.com/
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mwewe, it should not be that hard to make changes to your router, I agree. OpenDNS is a choice; we're confident enough that we're worth the choice that we don't hide how to choose another DNS.
I have DSL from AT&T (formerly PacBell, formerly SBC) at my home in San Francisco. My experience has been, well, different than yours w/r/t DNS. AT&T doesn't do a terrible job (for me), but it's neither as fast nor as reliable as OpenDNS. I don't get control over my preferences, statistics about my Internet usage, and phishing prevention should be done in layers, including DNS. (We never claim that DNS is the only solution to phishing. Anyone who claims they have "the" solution to anything in the security realm is... exaggerating, to put it politely.)
Note: a dynamic address is not an impediment to using OpenDNS. It is more challenging if you want to set custom preferences for a network, but those are optional. http://www.opendns.com/account/dynamic_dns.php has details.
Hope you'll give OpenDNS another try.
John -
You can get around the Linksys restriction on using 0.0.0.0 as your third DNS by turning off JavaScript in your browser.
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You can use OpenDNS's other DNS addresses for a third or forth DNS field.
208.67.222.220
208.67.220.222
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