Solved

POP3 and DNS zone files

Posted on 1997-06-23
2
214 Views
Last Modified: 2010-03-17
I have a strange problem when setting up a mail server under Linux.
POP3 service only works if I register client machine (usually Win95 or Win311) in the DNS zone file (not reverse)

If I don't do this, netscape is waiting for a minute, then
displays message "There is a problem connecting to POP3 server".

How should I avoid this problem w/o registering all clients in DNS database?
0
Comment
Question by:egorov
2 Comments
 
LVL 3

Expert Comment

by:sauron
ID: 1585041
Need more info really. Are you talking to a POP server at your ISP, etc, do you have administrative access to the POP server.

Very vague guess - maybe the server wants to do a lookup on you and check your IP address is valid. If the server you're connecting to has a hosts.allow and hosts.deny, try removing them, and trying again.
0
 
LVL 19

Accepted Solution

by:
xterm earned 100 total points
ID: 1585042
Pop3, like any inetd service requires a valid hostname.

The only way to get around this is to configure your pop
client with a numerical address (and who wants to do that?)

Luckily though, you don't have to have reverse DNS, but yes -
you absolutely MUST have forward resolution if you want your
clients to be able to use your pop3 server by name.
0

Featured Post

Control application downtime with dependency maps

Visualize the interdependencies between application components better with Applications Manager's automated application discovery and dependency mapping feature. Resolve performance issues faster by quickly isolating problematic components.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Postfix DNS lookups setup 5 41
linux, squid, exchange 14 142
IPA - how do I choose who can log into which servers? 1 68
Redirect mail server from IP to IP 2 90
I have seen several blogs and forum entries elsewhere state that because NTFS volumes do not support linux ownership or permissions, they cannot be used for anonymous ftp upload through the vsftpd program.   IT can be done and here's how to get i…
Note: for this to work properly you need to use a Cross-Over network cable. 1. Connect both servers S1 and S2 on the second network slots respectively. Note that you can use the 1st slots but usually these would be occupied by the Service Provide…
This is a video that shows how the OnPage alerts system integrates into ConnectWise, how a trigger is set, how a page is sent via the trigger, and how the SENT, DELIVERED, READ & REPLIED receipts get entered into the internal tab of the ConnectWise …
A company’s greatest vulnerability is their email. CEO fraud, ransomware and spear phishing attacks are the no1 threat to a company’s security. Cybercrime is responsible for the largest loss of money to companies today with losses projected to r…

919 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

19 Experts available now in Live!

Get 1:1 Help Now