For us single user homeboys, its always a stumbling block how to do resolution of your own host. Mine will never be resolvable with `host' or `nslookup'. For years I've just named it as I choose but set up mail to masquerade as my (ISP's) smtp server. One way or another that has always worked... The newest sendmail packages seem to finally break that for me. Something to do with sm-client I think. and the line in submit.cf: FEATURE(`msp', `[127.0.0.1]')dnl That used to say FEATURE(`msp')dnl But even changing it back, I get maillog messages that seem to indicate a resolution problem: Jul 7 23:49:58 reader sendmail[24514]: h686nwHQ024514: to=<reader@xxxxxxxxxxx>, delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=32425, relay=smtp.west.cox.net. [68.6.19.4], dsn=5.1.1, stat=User unknown Jul 7 23:49:58 reader sendmail[24514]: h686nwHQ024514: h686nwHR024514: return to sender: User unknown Jul 7 23:49:58 reader sendmail[24514]: h686nwHR024514: to=reader@xxxxxxxxxxx, delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=33449, relay=smtp.west.cox.net. [68.6.19.4], dsn=5.1.1, stat=User unknown Jul 7 23:49:58 reader sendmail[24514]: h686nwHQ024514: Losing ./qfh686nwHQ024514: savemail panic Jul 7 23:49:58 reader sendmail[24514]: h686nwHQ024514: SYSERR(root): savemail: cannot save rejected email anywhere I can make it work by using my sendmail.mc and submit.mc from the 7.3 install I just finaly laid to rest. And things begin to work, with no other changes. I suspect it is dns related and wondered if there is really a canonical way to make my host resolve with out actually getting an official hostname domain etc. Someone will point out that there are free ones but I just think it would be more unecessary bs. And more crapola to keep up with, So finally to the punch line: Is there something I can put in /etc/reslov.conf that will force a dns query to look at my hosts file first, and go no further if it hits pay dirt. I don't really want to run a nameserver myself. Again it just seems like too much work and bs for a single user operation. I've also contemplated some scheme where hostname is set to what ever my current internet address is at the firewall. and changes dynamically but that seems really trouble prone. I've seen and tried various things in /etc/resolv.conf. `search mylocal.domain' (as first line) `lookup file bind' (used on open bsd stock machines) I've never noticed any of that to make a shred of difference. If the nameserver lines are there, that is where the resolution is sent. Currently I have: cat /etc/resolv.conf nameserver 192.168.0.20 (only the one line) That host is my gateway router firewall which gets its address and dns information from my isp by dhcp. All of which is dynamic. Or at least can change with out notice. This works for all normal stuff like web browsing and mail (with my old sendmail.cf submit.cf). But still it would be nice to be able to say: nslookup reader.local.net1 and get back 192.168.1.7 Lots of other tools would be happy with that.
