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Supposing you had to purchase Western Digital SATA drives for use ina server, which of their models would you choose and why? Assume anon-RAID disk configuration.

Describe how you'd configure a RAID controller with four (4) disks attached for use with ZFS?

There are a few x86_64 CPUs server options available and you have to choose among three. How do you get an idea of which of the three will perform the best without having access to the hardware?

What memory specifications would you recommend for a database server with ZFS filesystems?

You're building a package with clang. It's failing during the linking stage. The compiler is not understanding the -R flag. How do you fix this?

What methods do you use to track vulnerabilities in third-party software packages installed by your package manager?

What OS or third-party package management systems have you used? Which one(s) do you prefer and why?

Another package you're building is failing during linking. The search directories are set in the library path flag sent to the linker. Yet, the resulting object does not have the required symbols which are provided by a library in the search path you specified. What is missing here?

Which firewall would you run on FreeBSD and why?

List six parts of any firewall rule.

How do you manage git repository ACLs?

How often would you scrub a zpool on a high-usage server, and when would you schedule that job?

Describe the configuration directive you'd change in Postfix's default configuration in order to provide a more secure SMTP service.

What are your minimum password length requirements for system accounts, database accounts, and service logins?

List some modifications to the stock PostgreSQL configuration which would make running the service more secure.

What is required to provide a more SSH service configuration?

There's a remote user created to handle MySQL replication. You can connect to the remote host using that user and password combination. GRANTs for replication on the master exist for the user on your host. Yet, when you start the slave, replication fails. What is wrong?

There is a service that exits randomly on a server. No one has been able to figure out why this happens. It's an important service and needs to have as little downtime as possible. What can you do to ensure immediate service continuity while the root cause is identified and a real solution is found?

List the CLI programmes and steps needed to test SMTP AUTH over TLS. The goal of the authentication configuration is the mail server will allow relaying mail through it. Let's assume the mail server is running on localhost.

What would happen to a server running ZFS with L2ARC enabled if an uncorrectable error event is encountered?

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About Verkkostadi

About Verkkostadi

Systems Administrator