CentOS Linux is a Linux distribution is an enterprise OS platform compatible with its source RedHat Enterprise Linux (RHEL). Its end of life was announced for December 2021.
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Junos OS
Score 7.1 out of 10
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Junos is a network operating system, from Juniper Networks.
I have been a CentOS user for over 10 years and remain loyal to the core OS. When it comes to stability and speed, there's no other OS I'd recommend over it. I base this recommendation on my personal experience, as I have multiple development and production servers running the CentOS software today. It's running on newer and older hardware with ease, and the price is right!
Juniper Operating systems are well suited for distribution and edge networks. When we evaluated them for a proposal to core networks we decided to go with other vendors, as the processing capacity of core routers was lower. Typical environments Junos OS has fit in our organization are enterprise, customer edge, distribution networks.
Some packages can be quite old compared with other distributions
Breaking changes appear often when packages are obsoleted usually with no supported transition path (this is a general *NIX problem, but it's more accentuated in CentOS)
Again, written documentation is excellent, even on the older versions. The support community is the best. It is comprehensive and I would say that it global because it transcends national boundaries. Also, you find all types of people using CentOS to do all sorts of things so you are bound to find someone to talk to if there are problems.
Ubuntu Linux is another candidate that we've evaluated. It stacks up well against CentOS Linux, however it does have some quirks we need to deal with such as package management and stability. For the most part, the server version of Ubuntu is stable, but we stick with CentOS Linux because it seems to have a slight edge over Ubuntu in that realm as well. I have colleagues at other firms that are wholesale Ubuntu server infrastructure, and they are very happy with it and Ubuntu is favorable there. With the changes that have occurred or may still yet occur at CentOS Linux, we may go down the path towards Ubuntu. But for now, CentOS Linux is where we are parked and will remain for the foreseeable future.
We have stuck to iOS for datacenter networks for many years due to familiarity and ease of use. Junos OS is well suited for business customers, due to cost-effectiveness and not frequent changes to end routers. Junos OS is very comparable to its competitors, but it bit behind on core layer solutions.
Since CentOS is free, our developers and engineers can use it without regard for dipping into project budgets.
We can spin up a CentOS VM, use it and then destroy it without having to worry about licensing headaches.
CentOS can run on just about any hardware platform: server, laptop, old hardware, etc. so that makes it less expensive in that we don't have to buy specialized hardware for it.
