Windows
Linux
Networking
HTTP
Windows openssl TLS test equivalent in Linux
Connects to a TLS service and prints certificate details.
Windows
→
openssl TLS test
Linux equivalents
openssl s_client -connect host:443 -servername host
openssl s_client -connect host:443 -servername host
openssl s_client -connect host:443 -servername host
Overview
What this command does
Connects to a TLS service and prints certificate details.
Migration tip: Check the distro-specific rows before copying; package names and service names can differ even when the tool name is similar.
Practical tasks
Common use cases
Inspect TLS connection
Connects to a TLS service and prints certificate details.
openssl s_client -connect host:443 -servername host
Inspect TLS connection
openssl --help
Show command help when supported
man openssl
Open the manual page when installed
Ready to run
Copyable Linux commands
Review paths, device names, package names and permissions before running any command.
openssl s_client -connect host:443 -servername host
Walkthrough
Examples with explanations
# Windows equivalent: openssl TLS test
openssl s_client -connect host:443 -servername hostReference
Common options and variations
| Command or option | Use |
|---|---|
openssl s_client -connect host:443 -servername host | Inspect TLS connection |
openssl --help | Show command help when supported |
man openssl | Open the manual page when installed |
Distro differences
Debian/Ubuntu vs Fedora vs Arch
The equivalent is shown for Debian/Ubuntu, Fedora and Arch. Some rows use a different package manager or helper tool where Linux distributions commonly diverge.
| Distribution | Package manager / base | Equivalent command | Difference to notice |
|---|---|---|---|
| Debian/Ubuntu | same command | openssl s_client -connect host:443 -servername host |
Same command on this distribution. |
| Fedora | same command | openssl s_client -connect host:443 -servername host |
Same command on this distribution. |
| Arch | same command | openssl s_client -connect host:443 -servername host |
Same command on this distribution. |
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