Upgrade or Downgrade from web GUI
Go to settings -> sensors and do the upgrade from there. Only running sniffers can be downgraded or upgraded via GUI. If you need to do downgrade, click on (+) for details, and then click on Blue UPGRADE button, dropbox will appear with versions available for downgrade/upgrade.
Manual upgrade or downgrade
Stop running sniffer service
/etc/init.d/voipmonitor stop # In case that service won't stop, press CTRL+C and use KILL signal to terminate the process with a force: kill -9 `pgrep voipmonitor` # In case that multiple instances of voipmonitor are running there, use last command multiple-times.
Choose a package version on a sourceforge site
Find voipmonitor*.tar.gz file of your choice at site https://sourceforge.net/projects/voipmonitor/files/ and use the link for wget command in step by step How To Install Sniffer
Example of wget command for version 20.4.4 with ss7(wireshark) module
wget https://sourceforge.net/projects/voipmonitor/files/20.4/voipmonitor-wireshark-amd64-20.4.4-static.tar.gz/download -O voipmonitor-wireshark-amd64-20.4.4-static.tar.gz --content-disposition --no-check-certificate
Download just a binary file directly from voipmonitor
Beware that only few latest versions are available
Curently those binaries are not available directly - use steps for installing voipmonitor package from a sourceforge above to download whole package and steps to install sniffer.
step by step for upgrade using downloaded binary file for 64bit
#You can backup previous version of a sniffer mv /usr/local/sbin/voipmonitor /usr/local/sbin/voipmonitor-backup #Download gziped binary, rename it and unpack. wget http://download.voipmonitor.org/senzor/download/20.4.4/voipmonitor.gz.64 --content-disposition --no-check-certificate mv voipmonitor.gz.64 voipmonitor.gz gunzip -c voipmonitor.gz > /usr/local/sbin/voipmonitor
#Ensure file is executable chmod +x /usr/local/sbin/voipmonitor
Check installed version
Locally using binary
Remotely using manager API of a running sniffer
echo 'sniffer_version'|nc 127.0.0.1 5029
where 127.0.0.1 is IP of a 'managerip' and 5029 is 'managerport' defined in this sniffer's config
Start installed version
/etc/init.d/voipmonitor start #or service voipmonitor start