TCP Server Question
I'm sorry if this is off topic for this list, but I'm assuming that there will be people here that can answer this question. I have a box that runs QMail TCPServer. The box has multiple external addresses that are used to route various port connections to internal network addresses using redir. My problem is that I now find that I need to route a port 25 connection into the network. The problem I am having is that TCPServer is binding to all the interface addresses and as such redir can not bind to the address and port I need. My question is how do I limit TCPServer to a specific address when it starts listening on ports 25 and 110. Thanks Duncan
RE: Telnet to smtp takes long respond time
If you are using tcpserve you may find that there are long delays on the host lookups that happen by default. The options you want to look at (if I remember correctly) are -H ) Do not look up the remote host name in DNS -l ) Do not look up the local host name in DNS -R ) Do not attempt to obtain $TCPREMOTEINFO from the remote host Cheers -Original Message- From: R vdB [mailto:[EMAIL PROTECTED]] Sent: 06 April 2001 14:12 To: [EMAIL PROTECTED] Subject: Telnet to smtp takes long respond time Installed qmail and it seems to work good. But, mail is often delivered with a long delay. It is stored at my provider (can see it there via webmail). Sometimes I cannot retrieve mail via smtp from the provider for hours. When I do a telnet session to myhost.xs4all.nl at port 25, it takes a minute or two for my server to respond. Could it be that every time my provider tries to deliver mail via smtp there's a timeout error? Unfortunately, it's not possible to take a look at the provider's smtp logfiles. If two minutes is too long, what can I do about it? Thanks, Rolf. _ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com.
qmail-pop3d problem
Hi All, I have inherited a box that is running Slackware with QMail. Qmail is setup to use tcpserver and rblsmtpd. The box is masquerading an internal address as well. If I connect to the internal interface (192.168.1) (1st ethernet card) via telnet on port 110 I get an immediate response (OK). If I connect to the external interface (2nd ethernet card) I get a long delay (40 sec +) before I get the OK prompt. If I connect from a machine that is one hop away on the internal network to the 192.168.1 ethernet card I get the 40 sec + delay). Once the connection happens the system is very quick. The problem I am having is that some mail clients are timing out when connection to the pop service. Due to the fact I inherited the box recently I am not aware of patch levels but the versions installed on the box are as follows. Qmail 1.03 rblsmtpd 0.70 tcpserver 0.84 daemontools 0.70 I think it may be some sort of network lookup that is being done but I don't really know enough about the box to know where to look. The box is not under resourced at all as it has more memory that it needs and the processors never go over 10%. Any ideas or pointers at reading material would be appreciated. Cheers Duncan
