Connection refused port 22
This error matches known, documented patterns with reliable solutions.
Quick Fix (Most Common Solution)
- Start SSH with systemctl start sshd
- Open port 22 in firewall
Seeing "Connection refused port 22"? This error can be frustrating, but it's usually fixable. It typically affects your development workflow or system. Below you'll find clear, step-by-step solutions to resolve this issue.
What This Error Means
SSH service is not running or port is blocked.
Frequently documented in developer and vendor support forums.
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Common Causes
- SSH service stopped
- Firewall blocking port 22
- SSH not installed
How to Fix
- Start SSH with systemctl start sshd
- Open port 22 in firewall
- Install openssh-server
Last reviewed: April 2026 How we review solutions
OS-Specific Behavior
Ssh Connection Refused Differences Across Ubuntu, CentOS, Alpine, and Debian
Ssh Connection Refused behavior varies significantly across Linux distributions because package names, default configurations, filesystem layouts, and init systems differ between distros. A fix that works on Ubuntu may fail on CentOS or Alpine.
Package name differences are the most common trap: the OpenSSL development library is libssl-dev on Debian/Ubuntu but openssl-devel on RHEL/CentOS. Python 3 is python3 on Debian/Ubuntu but may be python3.x on older RHEL. Alpine Linux uses musl libc instead of glibc, which causes binary compatibility issues with pre-compiled binaries and Python native extensions that assume glibc. Init system differences: Ubuntu 16.04+ uses systemd, older CentOS uses SysVinit, Alpine uses OpenRC — systemctl commands fail on Alpine. When documenting fixes, always specify which distribution and version the fix was tested on. Use cat /etc/os-release to identify the exact distro and version before applying fixes from Stack Overflow or documentation.Need reliable hosting?
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Frequently Asked Questions
How do I check if SSH runs?
Use systemctl status sshd or systemctl status ssh.
How do I open port?
Use ufw allow 22 or firewall-cmd --add-port=22/tcp.
Related Resources
Also Known As
- Linux error
- Unix error
- Terminal error
- Shell error
- Command line error
Common Search Variations
- "linux terminal error"
- "permission denied linux fix"
- "command not found linux"
- "linux shell error solution"
- "ubuntu error how to fix"
- "linux process crashed"
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