Introduction "Layer 2 Spine-Leaf" is a great architecture for most small data centers. If the data center only has a few racks of equipment, it's often unnecessary to build a more complex design. In its most basic deployment, all gateways are SVIs (V...
Import Dell Enterprise SONiC into Eve-NG for labbing. Download Dell Enterprise SONiC (requires login) and put in proper directory. Download the GNS3 image for use in Eve-NG. mkdir /opt/unetlab/addons/qemu/SONiC-4.2.0 unzip Enterprise_SONiC_OS_4.2...
Here are some brief notes on authenticating Linux users with AD - including using SSH keys. All of this was done on Ubuntu 22.04. Install necessary packages: sudo apt install sssd-ad sssd-tools realmd adcli Join the domain: sudo realm join <domai...
Decrypt PGP encrypted ISE backup. gpg -v --batch --yes --passphrase myEncryptionKey -d somefile.tar.gpg > somefile.tar Source
Here are some commands I continually find myself searcing for, all in one place. Fix terminal height/width set cli terminal height 500 set cli terminal width 500 Update Content/Threats from CLI (update license first) request license fetch request ...
Tailscale & IOx I absolutely love using tailscale. It uses a great new protocol, wireguard, but makes it easy to configure and use. I’ve used it as a VPN service for over a year now, but have always wanted to connected to devices that are not tailsca...
On new ISR routers with XE-SDWAN version 16.10.3+, you can only log in with the default password once. Over console, there is a message printed that warns you to change the password, but it can easily get lost in all the other console output. Breaki...
Here is a little script I wrote to automate putting certificates onto ASAs. It also activates the cert on the inside interface (mine is a one-armed VPN concentrator). The cert is assumed to already in the correct format and named asabase64.cert. #!/...
I keep having to look this up, so I’m just going to write it here quick. 1. Download firmware (finally on dell.com)2. Copy to usb stick or tftp server3. Do the upgrade. Here's how it works: OS10# copy run start (if tftp) OS10# image download tftp://...