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Warning: those guides are mostly obsolete, please have a look at the new documentation.

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Setting up ClamAV-milter for Sendmail on FreeBSD 8
 
Install the milter,
echo $PACKAGESITE
#pkg_delete clamav...
pkg_add -r clamav-milter
cp -v /usr/local/etc/rc.d/clamav-* /etc/rc.d/
Note. conflicts with the clamav package.
 
Use the defaults for now,
cd /usr/local/etc/
cp freshclam.conf.default freshclam.conf
cp clamd.conf.default clamd.conf
cp clamav-milter.conf.default clamav-milter.conf
 
Provide some easy symlink configuration folder for ClamAV-milter,
mkdir -p /etc/mail/clamav/
cd /etc/mail/clamav/
ln -s /usr/local/etc/freshclam.conf
ln -s /usr/local/etc/clamd.conf
ln -s /usr/local/etc/clamav-milter.conf
 
Make sure the clamav user and group exist,
grep clam /etc/passwd /etc/group
 
Check the paths,
cd /etc/mail/clamav/
grep ^DatabaseDirectory *
grep ^PidFile *
grep .sock$ *
ll /var/run/clamav/clamd.pid
ll /var/run/clamav/freshclam.pid
ll /var/run/clamav/clamav-milter.pid
 
Enable and start the daemons in that order,
cd /etc/
cat >> rc.conf <<EOF9
clamav_clamd_enable=YES
clamav_freshclam_enable=YES
clamav_milter_enable=YES
EOF9
start the updater in the first place,
ls -alkF /var/db/clamav/
/etc/rc.d/clamav-freshclam restart
ls -alkF /var/db/clamav/
r
wait until you get those files in that folder (the clamav-xxxxxxxxxxxx folder is temporary),
bytecode.cvd
daily.cvd
main.cvd
mirrors.dat
then start the other daemons,
/etc/rc.d/clamav-clamd restart
/etc/rc.d/clamav-milter restart
and check that everything is just fine,
ls -lF /var/run/clamav/clmilter.sock
ls -lF /var/run/clamav/clamd.sock
ls -lF /var/run/clamav/clamd.sock
ps aux | grep clam
 
Setting up the milter within Sendmail
Add this to your <hostname>.mc Sendmail configuration file,
INPUT_MAIL_FILTER(`clmilter', `S=local:/var/run/clamav/clmilter.sock, F=, T=S:4m;R:4m')
dnl define(`confINPUT_MAIL_FILTERS', `clmilter')
note. no "define confINPUT_MAIL_FILTER" is needed, as "INPUT_MAIL_FILTER" populates it already. (ref. cf/README or https://www.sendmail.com/sm/open_source/docs/m4/adding_mailfilters.html)
and apply,
make
make install
make restart
Note. no define confINPUT_MAIL_FILTER is needed, as INPUT_MAIL_FILTER populates it already. (ref. cf/README)
 
Troubleshooting
If you encouter this error,
Missing /var/db/clamav/clamav/*.cvd or *.cld files. You must run freshclam first
then you will have to wait until the freshclam daemon process finishes to update the /var/db/clamav/ folder, see above in the guide.
 

(obsolete, see the new doc)