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OpenSSH 10 with Latest Security Updates and Better Configs
If you’ve ever logged into a remote server using SSH, chances are you’re already using OpenSSH — the tool that makes it all secure and smooth. Now, OpenSSH 10 with Latest Security Updates has just landed, and it brings some pretty big changes.
You can now proceed to the guide steps below on the Orcacore website to see What’s New, What’s Gone, and Why You Should Update to OpenSSH 10.
Table of Contents
OpenSSH 10 with Latest Security Updates is Out Now
OpenSSH 10.0 is the latest update to the popular secure shell tool used for safe remote server access. It brings stronger encryption, better defaults, and improved security features to keep your connections more protected than ever. Follow the steps below to get more details about this newly released version.
Remove DSA Keys in OpenSSH 10
DSA keys were the old kind of SSH keys that weren’t secure anymore. OpenSSH has been warning about this for a while, and now with version 10.0, support for DSA is completely removed. That means if you’re still using them, your SSH setup might break until you switch to something stronger, like Ed25519 or RSA.
Quantum-Proof New Encryption in OpenSSH 10
OpenSSH 10.0 now uses a newer kind of encryption by default — one that’s built to handle even future threats like quantum computers. It’s called a “hybrid” encryption method, and it mixes old trusted tools with new quantum-proof ones.
OpenSSH 10 with Cleaner Code and Fewer Bugs
OpenSSH 10.0 comes with a lot of behind-the-scenes improvements. The login and session handling parts are now split, so if something goes wrong during login, it won’t affect the rest of your connection.
Some old and rarely used encryption methods are turned off by default, and the system now chooses faster, safer options automatically.
It’s all about separating concerns and minimizing risk. You’ll still see all your usual logs, but some will now come from sshd-auth instead of sshd-session. No biggie.
More Control with Better Configs in OpenSSH 10
There are so many better config changes in OpenSSH 10, including:
- No more Diffie-Hellman (modp) key exchange by default. ECDH is in, and it’s faster and more secure.
- AES-GCM is now preferred over AES-CTR. Faster, modern, and authenticated encryption — it’s the smart choice.
- SetEnv and User config now support variable expansion. Tiny feature, huge convenience.
Also, for all you config wizards: new “Match” options let you target configs based on version, command, session type, and more. That means cleaner, smarter, more flexible SSH configs.
OpenSSH 10 Bugfixes
Some helpful improvements come in OpenSSH 10:
- No more failed connections from oversized configs. Your sshd_config can be as verbose as your manager’s last Slack message.
- ControlMaster surprises are gone. scp and sftp now explicitly tell SSH not to create a new session behind your back.
And yes, they even added a signal (SIGUSR1) that tells the SSH agent to nuke all its loaded keys. Perfect for when you’re walking away from your terminal and don’t want to leave any loose ends.
These are the things you don’t realize you needed until they save you an hour of debugging.
Why Should We Update To OpenSSH 10?
Still using an older version like 9.x? Here’s why you should update now:
- Security fixes: Some versions had serious vulnerabilities that could let attackers crash your system or even intercept data.
- Faster performance: The new encryption is not just safer — it’s faster too.
- Better defaults: The new setup is smarter out of the box, which means less hassle and fewer mistakes.
If you’re running a production server, even a small improvement in speed and security is a big win.
Quick Tips Before You Upgrade:
- Backup your SSH config (/etc/ssh/sshd_config) — just in case something breaks.
- Check your key types — especially if you’re still using DSA.
- Update your system properly — via package manager or manually from the official site.
- Restart the SSH service once updated — and maybe test on a non-critical server first.
Conclusion
OpenSSH 10.0 isn’t just a “routine” update. It’s the kind of release that quietly shapes the future of secure connections. With stronger encryption, smarter defaults, and better tools for managing your configs, it’s built for both everyday users and hardcore sysadmins.
If you’re someone who connects to remote machines regularly, then this is one update you shouldn’t ignore.
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