Re: Slow connection on send Server connection closed
Dave Sill wrote: "JK" [EMAIL PROTECTED] wrote: I have a Linux 6.2 box with qmail, bind8 and apache on it. It was installed by a Linux consultant Ugh. BIND might not be your problem at the moment, but it will be sooner or later. How could your consultant have been clueful enough to install qmail but not djbdns? A little unfair Dave. Installing BIND over djbdns may not be an issue of which is "best". Maintaince is also an issue. If the person whom will be looking after the setup "knows" bjdbns then I would install that - otherwise if they knew BIND then I would use that. Obviously the above is an opinion, and some may disagree, but I am only trying to point out that the decision may not be so cut as dry, and hence the consultant my not be so clueless :-) Oh, agreed that BIND can be a nightmare ! Greg -Dave
RE: Slow connection on send Server connection closed
Sorry I forgot to include a link to a very good article that talks about split DNS implementations. Here it is. http://www.linuxgazette.com/issue45/tag/11.html -Original Message- From: Kris Kelley [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 21, 2001 3:58 PM To: QMail Mailing List Subject: Re: Slow connection on send Server connection closed JK wrote: 1. From the time Send is clicked in Netscape 4.75 on NT, and the completion takes 15-20 seconds... 2. Some of the Netscape users complain that they frequently get error message indicating that there may be network problem or server may have closed the connection. Can someone tell me where to begin to look to troubleshoot this? How was qmail installed by the consultant? Do you know if it's using inetd or tcpserver (or something more exotic) to listen to the SMTP port? My guess is your server is trying to do ident queries (port 113) which are disappearing into never-never land. tcpserver has an option to disable this, not sure about inetd. ---Kris Kelley
Re: Slow connection on send Server connection closed
"JK" [EMAIL PROTECTED] wrote: I have a Linux 6.2 box with qmail, bind8 and apache on it. It was installed by a Linux consultant Ugh. BIND might not be your problem at the moment, but it will be sooner or later. How could your consultant have been clueful enough to install qmail but not djbdns? -Dave
Re: Slow connection on send Server connection closed
On Wed, Feb 21, 2001 at 03:49:06PM -0800, JK wrote: I have a Linux 6.2 box with qmail, bind8 and apache on it. It was installed by a Linux consultant. It is currently in pre-production stage with very low traffic; 30 send/receive per hour at most. My beta-testers on lan complain of two problems. 1.From the time Send is clicked in Netscape 4.75 on NT, and the completion takes 15-20 seconds. Size of email makes no difference. Most of the time, Netscape simply says "Connecting to server". Then, in a flash, it's sent. 2.Some of the Netscape users complain that they frequently get error message indicating that there may be network problem or server may have closed the connection. Can someone tell me where to begin to look to troubleshoot this? This question comes up every three minutes or so on this list. The reason this happens is that the you're waiting for either a DNS or an ident request to time out. To solve your problem, investigate the -R, -H, and -l (that's dash ell) options to tcpserver (assuming you're using tcpserver, which, if you're not, you should be). If it's a DNS request that's timing out, you might also investigate the cause of the DNS failure. Chris PGP signature
RE: Slow connection on send Server connection closed
I encountered this problem not long ago and it was fixed by implementing a split DNS. I would recommend you look into split DNS and see how it would help your mail system resolve the name of the clients. -Original Message- From: Kris Kelley [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 21, 2001 3:58 PM To: QMail Mailing List Subject: Re: Slow connection on send Server connection closed JK wrote: 1. From the time Send is clicked in Netscape 4.75 on NT, and the completion takes 15-20 seconds... 2. Some of the Netscape users complain that they frequently get error message indicating that there may be network problem or server may have closed the connection. Can someone tell me where to begin to look to troubleshoot this? How was qmail installed by the consultant? Do you know if it's using inetd or tcpserver (or something more exotic) to listen to the SMTP port? My guess is your server is trying to do ident queries (port 113) which are disappearing into never-never land. tcpserver has an option to disable this, not sure about inetd. ---Kris Kelley
RE: Slow connection on send Server connection closed
It is using tcpserver. Could be ident queries. The firewall is wide-open for outbound, but inbound, only smtp dns are allowed. I'll play with the firewall setting to see if it makes a diff! Thanks for the input. jean -Original Message- From: Kris Kelley [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 21, 2001 3:58 PM To: QMail Mailing List Subject: Re: Slow connection on send Server connection closed JK wrote: 1. From the time Send is clicked in Netscape 4.75 on NT, and the completion takes 15-20 seconds... 2. Some of the Netscape users complain that they frequently get error message indicating that there may be network problem or server may have closed the connection. Can someone tell me where to begin to look to troubleshoot this? How was qmail installed by the consultant? Do you know if it's using inetd or tcpserver (or something more exotic) to listen to the SMTP port? My guess is your server is trying to do ident queries (port 113) which are disappearing into never-never land. tcpserver has an option to disable this, not sure about inetd. ---Kris Kelley
Re: Slow connection on send Server connection closed
JK wrote: 1. From the time Send is clicked in Netscape 4.75 on NT, and the completion takes 15-20 seconds... 2. Some of the Netscape users complain that they frequently get error message indicating that there may be network problem or server may have closed the connection. Can someone tell me where to begin to look to troubleshoot this? How was qmail installed by the consultant? Do you know if it's using inetd or tcpserver (or something more exotic) to listen to the SMTP port? My guess is your server is trying to do ident queries (port 113) which are disappearing into never-never land. tcpserver has an option to disable this, not sure about inetd. ---Kris Kelley
RE: Slow connection on send Server connection closed
Thanks for the suggestion, Chris. Yes, I am running tcpserver. DNS-wise, the box has very basic DNS records, just enough to know itself. The forwarder is set to isp's name server which is one hop away. This is a lone Linux in a predominantly NT environment and I am trying to tansition some services to Linux as everyone seems breathless about stability. I have DNS running on NT4 and DEC VMS. NT4 DEC contain records for lan hosts. On the client-side, name-resolution doesn't seem to be a problem; receive just flies! It is only on the send side that it crawls. jean -Original Message- From: Chris Johnson [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 21, 2001 3:56 PM To: JK Cc: [EMAIL PROTECTED] Subject: Re: Slow connection on send Server connection closed On Wed, Feb 21, 2001 at 03:49:06PM -0800, JK wrote: I have a Linux 6.2 box with qmail, bind8 and apache on it. It was installed by a Linux consultant. It is currently in pre-production stage with very low traffic; 30 send/receive per hour at most. My beta-testers on lan complain of two problems. 1.From the time Send is clicked in Netscape 4.75 on NT, and the completion takes 15-20 seconds. Size of email makes no difference. Most of the time, Netscape simply says "Connecting to server". Then, in a flash, it's sent. 2.Some of the Netscape users complain that they frequently get error message indicating that there may be network problem or server may have closed the connection. Can someone tell me where to begin to look to troubleshoot this? This question comes up every three minutes or so on this list. The reason this happens is that the you're waiting for either a DNS or an ident request to time out. To solve your problem, investigate the -R, -H, and -l (that's dash ell) options to tcpserver (assuming you're using tcpserver, which, if you're not, you should be). If it's a DNS request that's timing out, you might also investigate the cause of the DNS failure. Chris
RE: Slow connection on send Server connection closed
I have two tcpserver processes running, one with -v -p -x switches and the other with -H -R. I don't see -l. jean -Original Message- From: Chris Johnson [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 21, 2001 3:56 PM To: JK Cc: [EMAIL PROTECTED] Subject: Re: Slow connection on send Server connection closed On Wed, Feb 21, 2001 at 03:49:06PM -0800, JK wrote: I have a Linux 6.2 box with qmail, bind8 and apache on it. It was installed by a Linux consultant. It is currently in pre-production stage with very low traffic; 30 send/receive per hour at most. My beta-testers on lan complain of two problems. 1.From the time Send is clicked in Netscape 4.75 on NT, and the completion takes 15-20 seconds. Size of email makes no difference. Most of the time, Netscape simply says "Connecting to server". Then, in a flash, it's sent. 2.Some of the Netscape users complain that they frequently get error message indicating that there may be network problem or server may have closed the connection. Can someone tell me where to begin to look to troubleshoot this? This question comes up every three minutes or so on this list. The reason this happens is that the you're waiting for either a DNS or an ident request to time out. To solve your problem, investigate the -R, -H, and -l (that's dash ell) options to tcpserver (assuming you're using tcpserver, which, if you're not, you should be). If it's a DNS request that's timing out, you might also investigate the cause of the DNS failure. Chris
RE: Slow connection on send Server connection closed
Split DNS refers to internal external? Currently, only internal addresses have been entered. Is split DNS complicated? thanks, jean -Original Message- From: Campos Mario [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 21, 2001 4:05 PM To: 'Kris Kelley'; QMail Mailing List Subject: RE: Slow connection on send Server connection closed I encountered this problem not long ago and it was fixed by implementing a split DNS. I would recommend you look into split DNS and see how it would help your mail system resolve the name of the clients. -Original Message- From: Kris Kelley [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 21, 2001 3:58 PM To: QMail Mailing List Subject: Re: Slow connection on send Server connection closed JK wrote: 1. From the time Send is clicked in Netscape 4.75 on NT, and the completion takes 15-20 seconds... 2. Some of the Netscape users complain that they frequently get error message indicating that there may be network problem or server may have closed the connection. Can someone tell me where to begin to look to troubleshoot this? How was qmail installed by the consultant? Do you know if it's using inetd or tcpserver (or something more exotic) to listen to the SMTP port? My guess is your server is trying to do ident queries (port 113) which are disappearing into never-never land. tcpserver has an option to disable this, not sure about inetd. ---Kris Kelley
