Recent Questions - Server Fault

I am looking into a performance problem in a managed fixed wireless network, and I want to find the real bottleneck before I change the infrastructure.

The network uses links to connect remote sites. I need to figure out whether the limit is caused by congestion, channel configuration, link quality, or not enough backhaul capacity.

Before I think about changing ...

I am a small business owner with a relatively new .com domain, and I use Google Workspace for my mail.

I have a problem with emails from me going into recipient spam folders, however delivery to Gmail inboxes works.

At first, DMARC, DKIM and SPF were not configured, and I sent a few mails during that time.

I recently configured them and verified with a di...

I am relatively new to powershell and I have two statements on the cmd line:

get-adgroupmember | select-object name,samaccountname

To produce a nicely formatted table with two columns of a persons real name and their username.

get-adgroupmember | get-adprincipalgroupmembership | select-object name

To produce list of groups that each user in a...

I've been running varnish (3.0.1) in front of Apache and during a spike in traffic two days ago all visitors to the site started to receive a 403 error. From Googling about I've found one thread which says this is caused by Varnish's IP being passed to Apache instead of the user's who's making the request. (see

Trying to bring up a Dovecot 2.4.3 installation on my publicly accessible home server. I had a working 2.3.x installation and have followed all the migration advice on the dovecot website. Eventually, I archived the previous config and started again with a de minimis configuration from the dovecot website (1, below).

I narrowed the problem down to the server c...