pantz.org banner
A few Sendmail security settings
Posted on 12-26-2003 03:23:00 UTC | Updated on 12-26-2003 03:23:00 UTC
Section: /software/sendmail/ | Permanent Link

A few Sendmail security settings. None of these make your server secure they just help hide some things.

In the sendmail.cf file change "O PrivacyOptions=authwarnings" to this "O PrivacyOptions=authwarnings,noexpn,novrfy". What this does is prevents spammers from using the ``EXPN'' and ``VRFY'' commands in sendmail. They can be used to find and verify E-mail addresses.

In the Sendmail.cf file change "O SmtpGreetingMessage=$j Sendmail $v/$Z; $b" to this line "O SmtpGreetingMessage=$j $b". What this does is gets rid of the connection banner version number and the advert of "Sendmail".

Del.icio.us! | Digg Me! | Reddit!

Related stories


RSS Feed RSS feed logo
About


3com
3ware
alsa
alsactl
alsamixer
amd
android
apache
areca
arm
ati
auditd
awk
badblocks
bash
bind
bios
bonnie
cable
carp
cat5
cdrom
cellphone
centos
chart
cifs
cisco
cloudera
comcast
commands
comodo
compiz-fusion
corsair
cpufreq
cpufrequtils
cpuspeed
cron
crontab
crossover
cu
cups
cvs
database
dbus
dd
dd_rescue
ddclient
debian
decimal
dhclient
dhcp
diagnostic
diskexplorer
disks
dns
dos
dovecot
drac
dsniff
dvdauthor
e-mail
echo
editor
emerald
ethernet
expect
ext3
fat32
fedora
fetchmail
fiber
filesystems
firefox
firewall
flac
flexlm
floppy
flowtools
fonts
format
freebsd
ftp
gdm
gnome
greasemonkey
greylisting
growisofs
grub
hacking
hadoop
harddrive
hba
hex
hfsc
html
html5
http
idl
ie
ilo
intel
ios
iperf
ipmi
iptables
ipv6
irix
javascript
kde
kernel
kickstart
kmail
kprinter
krecord
kubuntu
kvm
lame
ldap
linux
logfile
lp
lpq
lpr
maradns
matlab
memory
mencoder
mhdd
mkinitrd
mkisofs
moinmoin
motherboard
mouse
movemail
mplayer
multitail
mutt
myodbc
mysql
mythtv
nagios
nameserver
netflow
nginx
nic
ntfs
ntp
nvidia
odbc
openbsd
openntpd
openoffice
openssh
openssl
opteron
parted
partimage
patch
perl
pf
pfflowd
pfsync
photorec
php
pop3
pop3s
ports
postfix
power
procmail
proftpd
proxy
pulseaudio
putty
pxe
python
qemu
r-studio
raid
recovery
redhat
router
rpc
rsync
samba
schedule
scsi
seagate
seatools
sed
sendmail
sgi
shell
siw
smtp
snort
solaris
soundcard
sox
spam
spamd
sql
sqlite
squid
ssh
ssh.com
ssl
su
subnet
subversion
sudo
sun
supermicro
switches
symbols
syslinux
syslog
systemrescuecd
t1
tcpip
tcpwrappers
telnet
terminal
testdisk
tftp
thttpd
thunderbird
timezone
ting
tools
tr
trac
tuning
tunnel
vi
wget
wiki
windows
windowsxp
wireless
wpa_supplicant
x
xauth
xfree86
xfs
xinearama
xmms
youtube
zdump
zic
zlib