{"id":51609,"date":"2026-07-22T12:28:19","date_gmt":"2026-07-22T12:28:19","guid":{"rendered":"https:\/\/ubuntuhandbook.org\/?p=51609"},"modified":"2026-07-22T12:28:19","modified_gmt":"2026-07-22T12:28:19","slug":"sniffnet-1-5-1-latency-check-cidr-ip-blacklists","status":"publish","type":"post","link":"https:\/\/ubuntuhandbook.org\/index.php\/2026\/07\/sniffnet-1-5-1-latency-check-cidr-ip-blacklists\/","title":{"rendered":"Sniffnet 1.5.1 added Latency Check & CIDR Ranges in IP blacklists"},"content":{"rendered":"

\"\"<\/p>\n

Sniffnet, the popular network traffic monitoring software, released new 1.5.1 version today.<\/p>\n

The new version of this free open-source software added some minor new features, translation updates, and fixed some issues.<\/p>\n

<\/p>\n

Without the requirement of running ping<\/code> command from terminal, the new version now displays Latency row<\/b> in the connection details page.<\/p>\n

To avoid extra traffic for every captured connection, user needs to do a single click on the button to measure the latency from local computer to the destination IP. And, it will cache the result for per remote IP while the app is running.<\/p>\n

\"\"<\/p>\n

This version also improved the IP blacklists import by adding CIDR ranges support. Previously, it only supports exact IPv4\/IPv6 addresses, such as 8.8.8.8<\/code> and 2001:db8::1<\/code>.<\/p>\n

Now, CIDR ranges that represent a block of IP addresses are also support. Meaning you can import IP blacklists contain something look like 1.2.3.0\/24<\/code> that represents IP from 1.2.3.0 to 1.2.3.255, and 2001:db8::\/32<\/code> for all IPv6 addresses whose first 32 bits are 2001:0db8<\/code>.<\/p>\n

And, it improved the import feedback by showing status details such as no blacklist file selected<\/em>, file read error<\/em>, no valid IP\/CIDR entries found<\/em>, and successful load with parsed entry counts<\/em>.<\/p>\n

\"\"

image from https:\/\/github.com\/GyulyVGC\/sniffnet\/issues\/845<\/p><\/div>\n

For Linux, Sniffnet 1.5.1 added some keywords to the .desktop<\/code> entry, so user can find out the app icons by also searching with traffic<\/code>, inspect<\/code>, monitor<\/code>, internet<\/code>, or network<\/code>.<\/p>\n

It as well added back old Linux Distributions support<\/b>, such as Ubuntu 22.04, Fedora 39, by removing the requirement of glibc 2.39<\/code> in the pre-build RPM, DEB, AppImage packages, and, fixed broken X-AppImage-Version<\/code> entry in sniffnet.desktop<\/code> for AppImage package.<\/p>\n

Other changes include:<\/p>\n