1. Add entry for new entry in DNS for clamav server
IP: 192.168.0.10
A Record: clamav.acorp.local
2. Add network alias and enable IP
cp /etc/sysconfig/network-scripts/eth0 /etc/sysconfig/network-scripts/eth0:1
vim /etc/sysconfig/network-scripts/eth0:1
#Change IPADDR
IPADDR=192.168.0.10
ifup eth0:1
3. Create a separate configuration file for clamav virtual host and create directory in html area
vim /etc/httpd/conf.d/clamav.conf
NameVirtualHost 10.91.1.38:80
< VirtualHost 10.91.1.38:80>
DocumentRoot /var/www/html/clamav
ServerName clamav.acorp.local
Options Indexes MultiViews
< /VirtualHost>
mkdir /var/www/html/clamav
4. Create script to download the virus definitions and add to cron jobs
vim /usr/local/sbin/clamav-download.sh
#!/bin/bash
cd /var/www/html/clamav || exit 1
mv -f *.cvd* old/
wget -q http://db.local.clamav.net/main.cvd || cp -rp old/main.cvd ./
wget -q http://db.local.clamav.net/daily.cvd || cp -rp old/daily.cvd ./
wget -q http://db.local.clamav.net/bytecode.cvd || cp -rp old/bytecode.cvd ./
vim /etc/cron.d/updates
0 0 * * * root /usr/local/sbin/clamav-download.sh
5. Change all servers to look at local database in freshclam configuration file
vim /etc/freshclam.conf
DatabaseMirror clamav.acorp.local
6. Create daily cron job to get regular updates. Ensure the cron.daily script (timings specified in /etc/crontab) happens after the virus definitions are downloaded.
vim /etc/cron.daily/freshclam
#!/bin/sh
### A simple update script for the clamav virus database.
LOG_FILE="/var/log/clamav/freshclam.log"
if [ ! -f "$LOG_FILE" ]; then
touch "$LOG_FILE"
chmod 644 "$LOG_FILE"
chown clamav.clamav "$LOG_FILE"
fi
/usr/bin/freshclam \
--quiet \
--datadir="/var/clamav" \
--log="$LOG_FILE" \
--daemon-notify="/etc/clamd.conf"
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