Install libevent-openssl-2.1-6 by entering the following commands in the terminal:
sudo apt update sudo apt install libevent-openssl-2.1-6
Description:
Asynchronous event notification library (openssl)
Libevent is an asynchronous event notification library that provides a mechanism to execute a callback function when a specific event occurs on a file descriptor or after a timeout has been reached. . It is meant to replace the asynchronous event loop found in event driven network servers. Currently, libevent supports /dev/poll, kqueue(2), event ports, select(2), poll(2) and epoll(4). . There is now a bufferevent type that supports SSL/TLS using the OpenSSL library. The code for this is build in a separate library, libevent_openssl, so that your programs don't need to link against OpenSSL unless they actually want SSL support.
Homepage: http://libevent.org/
Version: 2.1.8-stable-4build1
Section: libs