Closed Ports RHEL 7.5
Hi, I would like to know if after a default install, are all ports closed by default on RHEL 7.5 server? Thanks!
Responses
This is pertaining to the default installation mode in which firewalld gets enabled and by default in public zone only 'ssh' port is allowed. Other services and ports needed to be added as required to the default zone which is public by default.
Guru
9710 points
Hi GD,
In addition to what Sadashiva said : if you apply a security profile during the installation process - depending on which one you
select - you can make the system "as safe as a fortress" ... nearly everything coming from the outside (and a lot from the inside)
gets blocked then. Although, I'd prefer to stick with the "standard profile" (none) and adjust everything after the installation. :)
Oh, and if you don't explicitly enable 'automatic network connection' during the installation, the system is not even connected
to the internet on start up. Generally RHEL is one of the most secure systems (closed ports out-of-the-box etc.) on the market.
Regards,
Christian
Guru
9710 points
Standard profile or common profile, whatever you call it can be set during install.
If you don't select something else this means "no special configuration" in install.
Firewall settings is a different thing, when you block things additionally, it's okay.
Even though it's not exactly the same, Fedora meets the same security approach.
Also - don't forget that Fedora is the "lab" for what later becomes stable RHEL. :)
Regards,
Christian
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