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Question Debian 10 / Openssh 7 to 8 ?

Erwan

Regular Pleskian
Server operating system version
Debian 10
Plesk version and microupdate number
18.0.53
Hi all,

We have servers on Debian 10 / Obsidian v18.0.53.
Some services (with PHP ssh2_connect) can't work now because openssh version 7.x is depreciated (ssh-rsa).

Is it possible to update openssh7.x to openssh 8.x or 9.x without problem?

No update with:
#apt-get update
#apt-get upgrade


If yes, like this?

# ssh -V
OpenSSH_7.9p1 Debian-10+deb10u2, OpenSSL 1.1.1n 15 Mar 2022

#sudo echo "deb Index of /debian buster-backports main" >> /etc/apt/sources.list
#sudo apt-get update
#sudo apt-get install openssh-sftp-server/buster-backports openssh-server/buster-backports


Erwan
 
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