Plesk installation fails:
/var/cache/parallels_installer/installer: /lib64/libcrypto.so.10: version `OPENSSL_1.0.2' not found (required by /var/cache/parallels_installer/installer)
/var/cache/parallels_installer/parallels_installer_Ubuntu_18.04_x86_64_3.23.20: /usr/lib/x86_64-linux-gnu/libssl.so.1.1: version `OPENSSL_1_1_1' not found
The OpenSSL version installed on the server is lower than the version mentioned in the error, for example:
# openssl version
The OpenSSL package is outdated.
Connect to the server via SSH.
on CentOS/RHEL-based distributions:
# yum update openssl
on Debian/Ubuntu-based distributions:
# apt update && apt install openssl
Note: It is generally recommended to update all system packages prior to installing Plesk.