I think you have not read the whole conversation >From begin i spoke from "127.0.0.1" als client AND server AND nameserver
Yes localhost is the only nameserver with forwarding I have shown "telnet 127.0.0.1 25" I have shown "nsloolup 127.0.0.1" what resloves localhost and shows that localhost is the nameserver The answer was i have to use dig and not nslookup - On this point everyone could check that dns is not the trouble And no for localhost courier uses not dns I have shown you a successfull "telnet 127.0.0.1 25" after shutting down the nameserver the line above you say > No, it isn't. /etc/hosts is not used by Courier. If your problem was > related to IPv6, then you can't infer anything about DNS or the hosts > file from that problem. They're unrelated. But you see for localhost IT IS USED or why does it work without any nameserver even after a reboot? That DNS/hosts not was the problem i said after the first posting in this direction and the point that made me angry is the following discussion about dig/nslookup at a time that everyone can see it is not the point it makes simply angry to see that sam is not interested to solve the problem, instead his only answers are dns/dig etc. and that can not help at a point where a blind man sees that the problem is not there Gordon Messmer schrieb: > Reindl Harald wrote: >> Oh it does work WITHOUT ANY DNS now >> > > Is localhost the only nameserver in /etc/resolv.conf? > > What Sam was trying to tell you is that your name servers must be > configured properly. Often when you see delays in TCP connections, that > delay is caused by the server looking up the client's IP address in DNS > and not getting a timely response. Courier also looks up the name of > the user trying to connect using the "ident" protocol. That lookup can > also cause delays if your firewall drops packets to that port (the > connection has to time out rather than failing immediately). > > In the future, when you're asking other people for their help, it pays > to be patient and cooperate with their requests for information. In the > case where language is an obvious barrier, you may have to be more > patient, because you may misinterpret what you're being asked for > (example: identd "authd" and courier's "authdaemond"). > >> * Host-File is enough in this case (127.0.0.1) >> > > It isn't, though. Courier does lookups entirely through DNS. It > doesn't use the C library's NSS routines, so the hosts file isn't used. > >> Its simply bullshit to say /etc/host does not and it must be dns >> > > No, it isn't. /etc/hosts is not used by Courier. If your problem was > related to IPv6, then you can't infer anything about DNS or the hosts > file from that problem. They're unrelated. > >> Its simply bullshit to say you must use dig and not nslookup >> > > That's mostly true. nslookup does get its results from DNS. However, > being right is not an excuse to be rude. If I were you, I would > consider an apology to the list. You may well need support in the > future, and you're more likely to get that from a cooperative community > if you maintain a good relationship. > >> Hostfile must be enough because the isp-dns will never resolve localhost >> and localhost works without any network, not everybody has a named on >> the local machine >> > > Actually, your ISP's DNS *should* resolve localhost. RFC 1912 clarifies > this name server requirement. The hosts file works for simple name > lookups through the C library's NSS routines, but that's not what > Courier uses. > > > ------------------------------------------------------------------------- > This SF.net email is sponsored by DB2 Express > Download DB2 Express C - the FREE version of DB2 express and take > control of your XML. No limits. Just data. Click to get it now. > http://sourceforge.net/powerbar/db2/ > _______________________________________________ > courier-users mailing list > courier-users@lists.sourceforge.net > Unsubscribe: https://lists.sourceforge.net/lists/listinfo/courier-users > ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ courier-users mailing list courier-users@lists.sourceforge.net Unsubscribe: https://lists.sourceforge.net/lists/listinfo/courier-users
