A Record question
A Record question
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- A Record question
Topic: A Record question
I have a couple of computer set up doing a couple of different things (web server, mail/ftp server). Each computer has a different routable IP: web; xxx.xxx.xxx.165 mail/ftp; xxx.xxx.xxx.165.I added a second domain to my account for testing purposes: thantos.dynu.com and the wildcard A and AAAA records points to .252. I added a second A record with the alias www.thantos.dynu.com and pointed it to .165.I checked it was working by pinging both alpha addresses to make sure they resolve correctly. They did. I then stopped the pings and let it sit for a couple of hours as I worked on other things. I went to check the addresses again and both returned the .252 address. I then pinged .165 by numerical address and it worked so I rechecked by alpha addresses and they started returning the correct numerical IP address. I've done this a couple of times.I've read through the FAQs and Tutorials and Forum looking for an answer as to why this is happening. I haven't had any luck finding a reason/solution. Have I missed something?
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When a hostname yourhost.dynu.com is created, by default mail.yourhostname.dynu.com, www.yourhostname.dynu.com, ftp.yourhostname.dynu.com and server.yourhostname.dynu.com point to the primary IP address.In your case, www.thantos.dynu.com already points to the primary IP address .252. You added a second A record for www.thantos.dynu.com to point to IP address .165, so currently www.thantos.dynu.com maps to 2 IP addresses. You may do a nslookup at https://www.dynu.com/NetworkTools/DNSLookup.We suggest that you use an alias other than mail, www, ftp and server to point to a different IP address.
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Author | Topic: A Record question |
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stormfollower Joined: 09/07/2015 |
![]() mardi 5 janvier 2016 13:21
I have a couple of computer set up doing a couple of different things (web server, mail/ftp server). Each computer has a different routable IP: web; xxx.xxx.xxx.165 mail/ftp; xxx.xxx.xxx.165.I added a second domain to my account for testing purposes: thantos.dynu.com and the wildcard A and AAAA records points to .252. I added a second A record with the alias www.thantos.dynu.com and pointed it to .165.I checked it was working by pinging both alpha addresses to make sure they resolve correctly. They did. I then stopped the pings and let it sit for a couple of hours as I worked on other things. I went to check the addresses again and both returned the .252 address. I then pinged .165 by numerical address and it worked so I rechecked by alpha addresses and they started returning the correct numerical IP address. I've done this a couple of times.I've read through the FAQs and Tutorials and Forum looking for an answer as to why this is happening. I haven't had any luck finding a reason/solution. Have I missed something?
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timothytw Joined: 02/05/2002 |
![]() mercredi 6 janvier 2016 11:09
When a hostname yourhost.dynu.com is created, by default mail.yourhostname.dynu.com, www.yourhostname.dynu.com, ftp.yourhostname.dynu.com and server.yourhostname.dynu.com point to the primary IP address.In your case, www.thantos.dynu.com already points to the primary IP address .252. You added a second A record for www.thantos.dynu.com to point to IP address .165, so currently www.thantos.dynu.com maps to 2 IP addresses. You may do a nslookup at https://www.dynu.com/NetworkTools/DNSLookup.We suggest that you use an alias other than mail, www, ftp and server to point to a different IP address.
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samedi 7 septembre 2024 17:08