Tag: Networking
All the articles with the tag "Networking".
Category 5 Plug Wiring
Category 5 Plug Wiring
Dell iDRAC and Certificates
Updated:A wider vulnerability scan picked up that we had self signed certificates on our Dell iDRAC's (Dell Remote Access Controller). But also highlighted that th
SSL/TLS Deployment - Best Practices
Updated:https://www.feistyduck.com/library/openssl-cookbook/online/apA-ssl-tls-deployment-best-practices.html From ssllabs.com
Kali and OpenVAS
Updated:In house we use Nessus to scan for vulnerabilities, but that's a commercial subscription based product. It's not expensive, but it's not something I want t
OpenVPN Create User Keys
Updated:As I'd forgotten how to create a new OpenVPN user, it's not something I do every day, I thought I put here a reminder of the process used. To get a private
OpenVPN & DNS Lookup Failures
Updated:I've noticed that occasionally my OpenVPN connection fails to resolve host names for systems at the other end of the tunnel. If I check the DHCP settings I can see I am being pushed the DNS servers for the remote end, but nslookup fails to use them.
Mozilla Thunderbird Logging
I had the need to view the actual SMTP server conversation to confirm TLS and authentication were being used. I could have done this from server logs, but as we transmit thousands of SMTP messages a day it was easier to look to the client for logs, rather than for the needle in a stack of other needles.
Windows DKIM DNS Entry
Updated:Windows always gives me a bit of grief when trying anything a little out of the ordinary. I always find doing the same thing on Linux way simpler. This time it was relating to a DNS TXT entry for DKIM that is longer than 255 characters.
SPF Testing
http://vamsoft.com/support/tools/spf-policy-tester
Nginx, Not Just a Web Server
Updated:Nginx is capable of more than serving web pages. It can load balance, cache and act as a reverse proxy. We recently had need to access two web services on