CCCVancouver
Mar 26 2004, 07:24 AM
I have found multiple issue's with the two nameservers my domain t-ro.com uses.
1 - 209.152.170.32 returns no NS records
2 - the lame server 209.152.170.32 does not answer authoritatively for my domain.
Then there is just some things i would advize you to change in your SOA settings
The SOA refresh interval is set at 28800. This is quiet high. you should consider lowering it to around 3600-7200 seconds.
Same goes for SOA Expire time is 360000 seconds. also quiet high
1209600 to 2419200 seconds (2 to 4 weeks) is a good #
Going onto MX records - there is only 1 if your primary mail - server goes down we are pretty much in the dark.(trouble with the mail reaching us)
None of your mail servers seem to have reverse DNS (PTR) entries (I didn't get any responses for them). - Alot of mailservers will not accept mail from servers with no reverse DNS entry.
That is all
I really enjoy Hostony I hope the servers are back up and running smoothly soon:)
Good Luck
Sincerely
Rafael
CCCVancouver
Mar 26 2004, 11:42 PM
Reverse DNS entries for MX records is still not working
And your difference in TTL between your authoritative DNS servers and Parents DNS servers do not match. This can cause serious problems.
For example, if the parent servers have a 172800 second TTL (48 hours), and your authoritative DNS servers report a TTL of 3600 seconds (1 hour), you are saying that the parent DNS servers do not have the correct information. But, after 1 hour your DNS records may time out. At that point a DNS resolver will need to get fresh NS records. This can cause a serious problem in some cases.
Stanly
Mar 26 2004, 11:49 PM
Please have a look at this:
http://dnsstuff.com/tools/ptr.ch?ip=209.152.170.32QUOTE
Answer:
209.152.170.32 PTR record: 602671.servernode.net. [TTL 259200s] [A=209.152.170.32]
Reverse DNS record is ok.
CCCVancouver
Mar 27 2004, 08:04 AM
http://www.dnsreport.com/tools/dnsreport.ch?domain=t-ro.comFAIL Reverse DNS entries for MX records ERROR: None of your mail server(s) seem to have reverse DNS (PTR) entries (I didn't get any responses for them). RFC1912 2.1 says you should have a reverse DNS for all your mail servers. It is strongly urged that you have them, as many mailservers will not accept mail from mailservers with no reverse DNS entry.