OpenSSH is a vital tool for secure remote access, but hosting companies often delay adopting the newest versions. This article explores the reasons behind this cautious approach, focusing on stability, compatibility, and the unique challenges faced by providers.
OpenSSH (Open Secure Shell) is a widely used suite of secure networking utilities that provides encrypted communication over an unsecured network. It enables secure remote login, file transfers, and command execution, making it an essential tool for system administrators and developers managing Linux-based servers.
Despite OpenSSH’s continuous updates and security improvements, many hosting companies don’t adopt the latest versions immediately. Why is that the case?
What is OpenSSH Used For?
OpenSSH is primarily used for:
- Secure remote access to servers via SSH
- SFTP (Secure File Transfer Protocol)
- Port forwarding and tunneling
- Key management and authentication
It is considered the gold standard for secure server access, especially in the Linux ecosystem.
Why OpenSSH Updates Matter
The OpenSSH team regularly releases updates that include:
- Security patches
- Performance improvements
- New features or deprecations
- Bug fixes
Staying current is generally recommended in any software stack—especially with security-related tools like OpenSSH. So why would hosting providers delay upgrading?
Why Hosting Companies Often Don’t Use the Latest OpenSSH Version
1. Stability and Compatibility Matter More Than Bleeding Edge
Hosting companies prioritize stability. When a new version of OpenSSH is released, it may introduce unexpected bugs, incompatibilities, or deprecated features that can affect clients’ systems. Providers often wait for the version to mature and be thoroughly tested in real-world conditions before rolling it out.
2. Dependency on Operating System Packages
Most hosting companies use Linux distributions like CentOS, AlmaLinux, Ubuntu LTS, or Debian, which package OpenSSH through their repositories. These distributions often lock in specific versions of OpenSSH to maintain long-term support and system integrity.
For example:
- Ubuntu 20.04 LTS typically includes OpenSSH 8.2p1.
- CentOS 7 still uses OpenSSH 7.4.
While security patches may be backported, the visible version number often doesn't reflect the most recent major release.
3. Risk of Breaking Client Workflows
Some clients rely on very specific OpenSSH features or compatibility modes. Updating to the latest version can disable deprecated protocols or authentication methods, potentially breaking critical tools, scripts, or connections.
For instance:
- Newer OpenSSH versions have disabled
ssh-rsaby default due to SHA-1 vulnerabilities. - Legacy systems and IoT devices might not support newer, stronger encryption algorithms.
Hosting providers often take a conservative approach to avoid disrupting customer operations.
4. Internal Testing & Compliance Delays
Before deploying a major update like OpenSSH, hosting companies typically perform:
- Internal regression testing
- Security audits
- Configuration compatibility checks
For companies under strict regulatory frameworks (like PCI-DSS or HIPAA), these updates must also go through extensive change control processes, which inherently take time.
5. Managed Hosting vs. DIY Servers
In managed hosting environments, the hosting provider is solely responsible for ensuring server uptime and service continuity. In these cases, caution usually trumps cutting-edge. In contrast, developers managing their own VPS or bare-metal servers might opt to manually compile and install the latest version for new features or specific compliance needs, accepting the associated risks themselves.
Is Using an Older OpenSSH Version Unsafe?
Not necessarily. Most Linux distributions backport security patches to older OpenSSH versions. This means that while the version number might not be the latest, the software still receives critical security fixes.
However, using a version that is no longer maintained by either the OS vendor or the OpenSSH team can open the door to potential vulnerabilities.
What Should You Do as a Server Owner?
- Choose a reputable hosting company that regularly applies security patches—even if it doesn’t offer the absolute latest OpenSSH version.
- Enable key-based authentication instead of passwords for enhanced security.
- Stay informed about OpenSSH changes, especially if your applications rely on specific SSH features or keys.
- For advanced users: consider manually installing newer versions of OpenSSH if your distro supports it, but proceed with caution and thorough testing.
Final Thoughts
OpenSSH is a critical tool for secure server communication, and while it evolves quickly, hosting providers move cautiously for good reason. They prioritize stability, compatibility, and overall security for the majority of users rather than adopting every new release the moment it’s available.
If you host with a provider like CrossMedia, rest assured we balance security and stability—keeping OpenSSH patched and hardened, even if we’re not always running the very latest version. It’s about smart hosting, not just fast upgrades.