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Full Discussion: Search directive in resolv.conf
Top Forums UNIX for Dummies Questions & Answers Search directive in resolv.conf Post 302388977 by tetelee on Friday 22nd of January 2010 04:45:07 AM
Old 01-22-2010
Search directive in resolv.conf
Hi all,

I am doing an assignment and there is something I am confused about.
The requirement is to set up the DNS and sendmail to two domains: lab1 and lab2, with hosts of mail.lab1 and mail.lab2 both acting as DNS server and email server, and send mail from root@lab1 to root@lab2. However, it always complains about host unknown about lab2. I tried dig mx lab2, and it could get the correct address of the mail server. But when I send the mail and use tshark to monitor the pakcets, I see the mail server is always querying lab2.localfarm to get the mx record. I am guessing it is because the name of lab2 is not FQDN. I have already deleted the line of "search localfarm", and tried "search ." but still no luck.

More interesting information is, if I send to root@mail.lab2, it works (but it is not the requirement). And if I changed the domain names to lab1(2).net, both @mail.lab2.net and @lab2.net are working. Can anyone help me out? I have bee struggling with this problem for over two weeks.

Thanks for your help!
 

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LEARN ABOUT SUNOS

check-permissions

check-permissions(1M)					  System Administration Commands				     check-permissions(1M)

NAME

       check-permissions - check permissions on mail rerouting files

SYNOPSIS

       /usr/sbin/check-permissions [login]

DESCRIPTION

       The   check-permissions script is intended as a migration aid for sendmail(1M). It checks the /etc/mail/sendmail.cf file for all configured
       alias files, and checks the alias files for :include: files. It also checks for certain .forward files. For each file  that   check-permis-
       sions checks, it verifies that none of the parent directories are group- or world-writable. If any directories are overly permissive, it is
       reported. Otherwise it reports that no unsafe directories were found.

       As to which .forward files are checked, it depends on the arguments included on the command line. If no	argument  is  given,  the  current
       user's home directory is checked for the presence of a  .forward file. If any arguments are given, they are assumed to be valid logins, and
       the home directory of each one is checked.

       If the special argument ALL is given,  the passwd entry in the  /etc/nsswitch.conf file is checked, and all password entries  that  can	be
       obtained through the switch file are checked. In large domains, this can be time-consuming.

OPERANDS

       The following operands are supported:

       login	       Where login is a valid user name, checks the home directory for	login.

       ALL	       Checks the home directory of  all users.

FILES

       /etc/mail/sendmail.cf   Defines enviornment for	sendmail

       /etc/mail/aliases       Ascii mail aliases file

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWsndmu 		   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Evolving			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       getent(1M), sendmail(1M), aliases(4), attributes(5)

SunOS 5.10							    10 Nov 2003 					     check-permissions(1M)
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