[NTLUG:Discuss] SendMail issue

asenec@senechalle.net asenec at senechalle.net
Tue Jun 10 12:00:45 CDT 2003


> Wow, your getting me somewhere now. I in fact DON'T have an /etc/aliases.db. 
> I ran the newaliases as you suggested, and I got the following errors:
> 
> WARNING: World writable directory /
> WARNING: World writable directory /
> hash map "Alias0": unsafe map file /etc/aliases.db: World writable directory
> dbm map "Alias0": unsafe map file /etc/aliases: No such file or directory
> WARNING: cannot open alias database /etc/aliases
> Cannot create database for alias file /etc/aliases

At the least, do this:

	>/etc/aliases;newaliases

I'd recommend, however, a minimal /etc/aliases file, such as:

red:/var/lib/mail# cat /etc/aliases
#	@(#)aliases	8.2 (Berkeley) 3/5/94
#
#  Aliases in this file will NOT be expanded in the header from
#  Mail, but WILL be visible over networks or from /bin/mail.
#
#	>>>>>>>>>>	The program "newaliases" must be run after
#	>> NOTE >>	this file is updated for any changes to
#	>>>>>>>>>>	show through to sendmail.
#

# Basic system aliases -- these MUST be present.
MAILER-DAEMON:	postmaster
postmaster:	root

# General redirections for pseudo accounts.
bin:		root
daemon:		root
games:		root
ingres:		root
nobody:		root
toor:		root
uucp:		root

# Well-known aliases.
manager:	root
dumper:		root
operator:	root

> 
> I am drawing a complete blank on how to check permissions for /. I ran a 
> mount command and got:
> /dev/root on / type xfs (rw,raw=/dev/rroot)
> (This is exactly the same on some of my other servers)

ls -ld /

Should be 755 root.root .


Annette

> 
> Thanks again for the help in pointing me in the right direction. I am very 
> unexperienced with sendmail and I have to start somewhere. I see that I am 
> still getting those errors even after removing the stuff from the define 
> line. So where should I go from here?
> 
> Paul Drew
> 
> >From: asenec at senechalle.net
> >Reply-To: NTLUG Discussion List <discuss at ntlug.org>
> >To: discuss at ntlug.org
> >Subject: Re: [NTLUG:Discuss] SendMail issue
> >Date: Tue, 10 Jun 2003 10:13:43 -0500 (CDT)
> >
> >What are the permissions on /etc/aliases.db?
> >What happens when you execute:
> >
> >	newaliases
> >
> >Do you encounter any error messages?  If so, what are they?
> >If not, do you now have an new /etc/aliases.db file?
> >
> >Annette
> >
> > > From solarcurve at msn.com Tue Jun 10 09:39:19 2003
> > > X-Originating-IP: [208.193.202.115]
> > > X-Originating-Email: [solarcurve at msn.com]
> > > From: "Paul Drew" <solarcurve at msn.com>
> > > To: discuss at ntlug.org
> > > Subject: Re: [NTLUG:Discuss] SendMail issue
> > > Date: Tue, 10 Jun 2003 09:37:04 -0500
> > > Mime-Version: 1.0
> > > X-OriginalArrivalTime: 10 Jun 2003 14:37:05.0200 (UTC)
> > > 	FILETIME=[C3538300:01C32F5D]
> > > X-BeenThere: discuss at ntlug.org
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> > >
> > > >From: Kenneth Loafman <ken at lt.com>
> > > >Reply-To: NTLUG Discussion List <discuss at ntlug.org>
> > > >To: NTLUG Discussion List <discuss at ntlug.org>
> > > >Subject: Re: [NTLUG:Discuss] SendMail issue
> > > >Date: Tue, 10 Jun 2003 09:18:36 -0500
> > > >
> > > >Paul Drew wrote:
> > > >>sendmail[3032988]: h5AD04tW3239227: SYSERR(root): hash map "Alias0":
> > > >>unsafe map file /etc/aliases.db: World writable directory
> > > >
> > > >Why is your /etc directory world writable?  Bad security risk.
> > >
> > > It isn't I had already checked this weeks ago, and I don't understand 
> >why
> > > its saying that. My permissions on /etc are:
> > > drwxr-xr-x   21 root     sys           12K Jun  9 08:16 etc
> > >
> > > >
> > > >>sendmail[3032988]: h5AD04tW3239227: SYSERR(root): dbm map "Alias0": 
> >unsafe
> > > >>map file /etc/aliases: No such file or directory
> > > >
> > > >This one seems obvious.  How did you get an aliases.db without an 
> >aliases
> > > >file?
> > >
> > > I have an /etc/aliases file and It seems intact with all of the entries 
> >in
> > > it that I think should be.
> > >
> > > >
> > > >...Ken
> > >
> > > Thanks for your help Ken, I do appreciate it, I guess I can scratch 
> >those
> > > off the list of things I have looked at now. Your answers are what I was
> > > finding in google, and while they sound good, they don't seem to be the
> > > problem. Do you think it means something is hosed inside the aliases 
> >file? I
> > > tried messing around with some things I saw suggested, and they did no 
> >good.
> > > I inherited this server about 10 months ago, so I am not real clear on 
> >its
> > > history. It has been in service since 1995. The following line I saw, 
> >and
> > > tried to fix based on some suggestions I read.
> > >
> > > # Following alias is required by RFC 822
> > > #       You should change 'root' in the first line below to the
> > > administrator
> > > #       of this machine, and un-comment the following line.
> > > #postmaster:root
> > >
> > > I tried the following things
> > > postmaster:(me at myemail)
> > > root:(me at myemail)
> > >
> > > Neither of these attempts resolved my issue at all. I have gotta be 
> >missing
> > > some large simple thing, but for the life of me I cannot figure it out. 
> >As I
> > > said above, I do appreciate any help and comments you guys are nice 
> >enough
> > > to give me. Have a great day, and take care.
> > >
> > > Paul Drew
> > >
> > > _________________________________________________________________
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> > >
> >
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> 
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