Centos 5.10
Our static 32bit builds are not compatible with older centos but 64bit will work. If you have 32bit version of Centos 5.X follow those instructions which will compile the sniffer:
Install development tools
yum groupinstall "Development Tools"
Install latest epel-release from http://dl.fedoraproject.org/pub/epel/5/i386/
wget http://dl.fedoraproject.org/pub/epel/5/i386/epel-release-5-4.noarch.rpm rpm -Uvh epel-release*rpm
Install snappy and json from epel archives
yum install snappy json-c-devel
Install rrdtool and XML2
yum install rrdtool rrdtool-devel libxslt-devel libxml2-devel
Install other required packages
yum install openssl openssl-devel curl-devel zlib-devel cpio expat-devel gettext-devel unixODBC-devel mysql-devel libogg-devel libvorbis-devel vorbis-tools
Install libpcap (tcpdump) from sources (packages in archive are too old)
wget http://www.tcpdump.org/release/libpcap-1.5.3.tar.gz tar -xzf libpcap-1.5.3.tar.gz cd libpcap-1.5.3 ./configure make make install
Setting for dynamic libraries
echo "/usr/local/lib" >> /etc/ld.so.conf ldconfig
Compile latest voipmonitor sniffer
wget http://www.voipmonitor.org/current-stable-sniffer-src.tar.gz tar -xzf voipmonitor-*-src.tar.gz cd voipmonitor-*-src ./configure make
Don't forget to stop voipmonitor before overwriting binaries (/etc/init.d/voipmonitor stop)
make install