On Thu, 2003-07-31 at 16:20, [EMAIL PROTECTED] wrote: > > You didn't answer my last question, so I did a little > > investigation of my own. > > Sorry, forgot about that one. What exactly is a PTR?
Pointer record. It's a DNS record that allows for the mapping of an IP address back to a hostname. It's not necessary for normal operation on the Internet, but it is/can be required for certain applications. Many mailservers are configured to reject mail from other servers that do not have reverse DNS (PTR) in place. Also, kerberos authentication requires a valid PTR. It appears that you are authoritative for your subnet, so you can add it yourself. On a side note, I noticed that your SOA has incorrect syntax for the contact email address: 176.242.199.in-addr.arpa. 10800 IN SOA axp.winnefox.org. [EMAIL PROTECTED] 2003021202 14400 7200 12096000 86400 You should use "boehning.winnefox.org". > > Fortunately (for me), your DNS > > provider is allowing zone transfers to outside parties > > (BAD!). > > What does that mean, and how can I fix that? It means that anyone is allowed to pull a complete copy of your DNS zone. This is bad. You shouldn't allow zone transfers. Check your nameserver manpages for the proper syntax to disable this option. > > An axfr of winnefox.org shows 2 mail servers, "mail" > > and "storm". A quick check of storm's IP shows no PTR in > > place. Fix that and your problems disappear. :) > > Actually, Storm is the redhat 8 server that's been working fine for > about 6 months now. The new server is Mystique. I see no DNS in place at all for "mystique". Is this in the winnefox.org domain or something else? -- Jason Dixon, RHCE DixonGroup Consulting http://www.dixongroup.net -- redhat-list mailing list unsubscribe mailto:[EMAIL PROTECTED] https://www.redhat.com/mailman/listinfo/redhat-list
