Monthly Archives: June 2007

CSS – Vertically Centering

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Vertically centering in CSS is not necessary simple to achieve as one would think. However saying this I have been able to achieve vertically centering without hacks and works in Mozilla Firefox, IE 5.5, IE 6, IE 7, Opera 9.10 and Safari for Windows.

Use vertical-align: middle with line-height. Make the line height is the same as the box height. If you do not see the alignment change make sure you have the height and line-height value set the same for the box in conjunction with the element you want to have the content vertically centered to.

Example

Vertically Centered Text

Source: Ten CSS Tricks You May Not Know – 8. Vertically aligning with CSS
Source: Jakpsatweb – Vertical Centering in CSS

Sendmail Errors

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I recently rebuilt my sendmail config file and started noticing the following errors in my /etc/maillog.

  • “No local mailer defined”
  • “QueueDirectory (Q) option must be set”
  • “sendmail.cf line 1: invalid argument to V line: ERSIONID(@#)openbsd”

I searched for some time in Google but was unsuccessful locating how to resolve these problems. So I went to IRC Freenode in the channel #sendmail and ask for help. Cannonball suggested I add “include(`/usr/share/sendmail/m4/cf.m4′)dnl” to my config file without quotes. I added it in on the 3rd line (excluding comments). I rebuilt my config with “m4 openbsd-localhost.mc > /etc/mail/sendmail.cf”. Then killed the service sendmail (kill -HUP PID) and restarted sendmial. All the error messages disappeared. Thanks cannonball for helping out, much appreciated.

Here’s my sendmail mc file which is /usr/share/sendmail/cf/openbsd-localhost.mc with the added include line and define statement for smart_host.

divert(-1)
#
# Copyright (c) 1998 Sendmail, Inc.  All rights reserved.
# Copyright (c) 1983 Eric P. Allman.  All rights reserved.
# Copyright (c) 1988, 1993
#       The Regents of the University of California.  All rights reserved.
#
# By using this file, you agree to the terms and conditions set
# forth in the LICENSE file which can be found at the top level of
# the sendmail distribution.
#
#  This configuration only runs sendmail on the localhost interface.
#  This allows mail on the local host to work without accepting
#  connections from the net at large.
#

divert(0)dnl
include(`/usr/share/sendmail/m4/cf.m4')dnl
VERSIONID(`@(#)openbsd-localhost-smarthost.mc $Revision: 1.4 $')
OSTYPE(openbsd)dnl
FEATURE(nouucp, `reject')dnl
FEATURE(`accept_unresolvable_domains')dnl
FEATURE(`no_default_msa')dnl
define(`SMART_HOST',`10.10.8.1')dnl
MAILER(local)dnl
MAILER(smtp)dnl
DAEMON_OPTIONS(`Family=inet, address=127.0.0.1, Name=MTA')dnl
DAEMON_OPTIONS(`Family=inet6, address=::1, Name=MTA6, M=O')dnl
DAEMON_OPTIONS(`Family=inet, address=127.0.0.1, Port=587, Name=MSA, M=E')dnl
DAEMON_OPTIONS(`Family=inet6, address=::1, Port=587, Name=MSA6, M=O, M=E')dnl
CLIENT_OPTIONS(`Family=inet6, Address=::')dnl
CLIENT_OPTIONS(`Family=inet, Address=0.0.0.0')dnl
dnl
dnl Some broken nameservers will return SERVFAIL (a temporary failure)
dnl on T_AAAA (IPv6) lookups.
define(`confBIND_OPTS', `WorkAroundBrokenAAAA')dnl