I was just having a discussion on one of Orhan Ergun’s posts on LinkedIn about “no dns lookup” vs “transport preferred none” in a #Cisco #IOS configuration. I thought it deserved a wider distribution, so here I am.
Lots of folks disable name lookups on Cisco IOS boxen to prevent the device from attempting to resolve mistyped commands as host names. Unfortunately, this disables name lookup for •all• functions on the device, which can break a few important things.
Rather than disabling name lookups entirely, I recommend turning off the device’s default behaviour for mistyped commands, which is to treat them as host names and to connect to them via telnet or rlogin, which can include a name lookup.
Configuring “transport preferred none” on the con and vty lines will give the device no transport protocol to use for such connections and it won’t bother to try, eliminating the name lookup problem with mistyped commands while preserving lookups for other functions.
The more experience I have with networking vendors, the more I become convinced that their prevailing definition of “enterprise” only includes the top 1% to 2% of the enterprise market. #NetEng
Me: I'm going quietly mad.
Husband: weren't you just yelling at that router?
Me: do you want to be next??
Booked for MTCSWE training and certification at the end of July. #MikroTik #MTCSWE #Certification #NetEng #Pokémon
It's showtime!
On my way to #Autocon3
SharkFest'25 US is almost here!
June 14–19 • Richmond, Virginia
Whether you're a packet analysis pro or just getting started, SharkFest is the place to sharpen your #Wireshark & #Stratoshark skills, learn from world-class instructor & connect with the community.
- Hands-on workshops
- Expert-led sessions
- Keynote from Vint Cerf
- Pre-conference classes with top analysts
Register now & be part of the packet party: https://sharkfest.wireshark.org/sfus/
Jon Howe showing us…pain? Good timing on the pic. LOL
Network operations is great, but what about your career? We’re getting some insights into how to route your own career.
The shirt!
A great room to learn and network with peers.
This guy!
Should I add “diktyomancer” to my collection of silly job titles or is too obscure? Decisions, decisions. #SundayMorningThoughts #NetEng
It's a week to go until #TORNOG here in #Toronto. Looking forward to meeting with the operators who show. I'm also hoping we get a mandate to setup a local full day conference in the near future.
I've learned so much from this organizing effort and I'm hoping everyone has a good time
P.S. , we have just a few tickets left after the ticket extension. Feel free to grab one at https://tornog.ca
Every year or two someone writes me an email about a DMVPN article I wrote back in 2017 when I was trying to figure out issues in large mobile WANs over 3G/LTE (some as backup, some as only link).
It's kinda wild how some things don't really change... tunneling and NAT continue to deliver and entertain.
please, oooh please, just tell me no..
It's 2am and I just want one thing
a strong, handsome, sexy pair of SFP+
in a 10G ethernet switch, RISC-V cores
mod'able, jtag'able, RTOS'able, oooh yes
... so... in all seriousness, there have been lustful hardware-acquisition eyes on this pretty little design since its pre-release marketing materials hit the English speaking OSS internet, and have been watching from afar as its reviews came through, patiently.
I'm not one to say that tonight is the right time to buy a pair, but it's not NOT the right time to buy a pair of Milk-V Vega switches.
Main:
- https://milkv.io/vega
Detailed Community Review:
- Getting an overview of Vega Basics
- https://community.milkv.io/t/getting-an-overview-of-vega-basics/1665
*note: I am particularly aware of its limitations, do not expect a production grade switch, mostly want more risc-v hardware to develop with, and general messing around