I must update a ISPConfig installation, behind a closed firewall. I can whitelist the ISPConfig update IP addressess, or i can manualy download some update, unpack it and update the server. I would also have to update the SSL for the website and for the server, through some manual acme.sh command Can you please share some info if it is doable? Thanks in advance for your time
See release notes, e.g.: https://www.ispconfig.org/blog/ispconfig-3-2-11-released/ chapter 'Manual update instructions'. As you can not use the direct download with wget, download it to your desktop, move the ISPConfig tar.gz file in an appropriate way to the system and proceed with the next step. acme.sh, in the way its implemented in ISPConfig, requires a network connection on port 80 from LE server to your system. I doubt that running acme.sh makes any difference compared to ISPConfig running it.
