On 8/18/2011 9:07 PM, Craig White wrote: > On Thu, 2011-08-18 at 20:47 -0700, Paul Allen Newell wrote: >> [root@yoyo ~]# netstat -anp | grep ":25" >> tcp 0 0 127.0.0.1:25 0.0.0.0:* >> LISTEN 1510/sendmail: acce >> [root@yoyo ~]# netstat -anp | grep ":23" >> [root@yoyo ~]# >> +++ >> >> I'm staring at man netstat and the description of local address, >> foreign address, and state ... but not certain what it really means in >> context of your question regarding listening ... I think I am supposed >> to assume that this output means 127.0.0.1:25 is listening to anything >> sent from 0.0.0.0:* ? > ---- > I believe that means that you can only connect to port 25 from localhost > and not any other computer. > > It's been many years since I used sendmail (I heavily recommend postfix) > but I think if you edit /etc/mail/sendmail.mc and find the section... > > dnl # The following causes sendmail to only listen on the IPv4 loopback > address > dnl # 127.0.0.1 and not on any other network devices. Remove the > loopback > dnl # address restriction to accept email from the internet or intranet. > dnl # > DAEMON_OPTIONS(`Port=smtp,Addr=127.0.0.1, Name=MTA')dnl > > and chnage the last line to > dnl DAEMON_OPTIONS(`Port=smtp,Addr=127.0.0.1, Name=MTA')dnl > > and restart sendmail to enable it to listen on all your network > interfaces. > > Note that you then have to edit /etc/mail/access to control who can > 'relay' email (and restart sendmail again). > > also note that generally running your own smtp server requires you to > have a dns server so you have an mx record so it becomes obvious which > server receives e-mail for your domain. > > Craig > > Craig: Thanks, I found that line in sendmail.mc and think I understand what it is doing ... and what your suggestion do commenting it out will do. I've begun googling about /etc/mail/access and that's going to take some time. Though this potentially solve the larger question of allowing email to be received on my 192.168.2.x LAN, I need to ask if you are implying that doing this in sendmail.mc et al means that I don't have to do anything with iptables for the mail / mailx issue? And it still leaves me with a failure in my learning exercise about not being able to tell my machines that they should accept my "test telnet" from other machines in my LAN. I don't want to waste folks time on a test that I don't need, but I feel there is something about communication between machines that I am not getting ... and need to if I am going to consider a more elegant LAN setup Paul -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines
