Jody Lemoine 🇨🇦
@ghostinthenet.bsky.social
Network anarchitect and matrix greasemonkey, CCIE 41436, Mikrotik Certified Trainer, MT*E, Tech Field Day Delegate
(Follow me in the Fediverse at @[email protected]. I’m here, but it’s a side thing.)
(Follow me in the Fediverse at @[email protected]. I’m here, but it’s a side thing.)
A silly excuse used to avoid #IPv6: The addresses are too hard to remember. Here’s a thought: Maybe if the addresses are •really• hard to remember, folks will stop configuring them directly into client configurations and we won’t have to go finding broken stuff when the service moves. #Grr #NetEng
December 15, 2025 at 4:33 PM
December 5, 2025 at 12:53 PM
I'm tired of dealing with folks who never get back to me with answers. New idea: Not going to ask, "Is this the right thing to do?" Instead, I'll go with, "I'm doing this on Wednesday. If this isn't going to work for you, provide an alternative solution by Monday evening." #TheyHadTheirChance
December 4, 2025 at 9:22 PM
I'm tired of dealing with folks who never get back to me with answers. New idea: Not going to ask, "Is this the right thing to do?" Instead, I'll go with, "I'm doing this on Wednesday. If this isn't going to work for you, provide an alternative solution by Monday evening." #TheyHadTheirChance
Today’s task: Convincing myself that being without my cafés américain while my machine was on the blink does •not• introduce a requirement to make up for lost dosages. #Coffee #LiesWeTellOurselves
December 3, 2025 at 2:01 PM
Today’s task: Convincing myself that being without my cafés américain while my machine was on the blink does •not• introduce a requirement to make up for lost dosages. #Coffee #LiesWeTellOurselves
Tried running #containerlab inside of an LXC container for funsies. It did •not• go well. I think I’ll go back to serious work now. #HeChosePoorly #NetEng #clab #lab
November 28, 2025 at 11:10 PM
Tried running #containerlab inside of an LXC container for funsies. It did •not• go well. I think I’ll go back to serious work now. #HeChosePoorly #NetEng #clab #lab
Ah, #clickbait. If I “won’t believe what happens next” then there’s no point in wasting my time reading it, right? Moving on.
November 28, 2025 at 6:38 PM
Ah, #clickbait. If I “won’t believe what happens next” then there’s no point in wasting my time reading it, right? Moving on.
No turkey and stuffing for me, but containers and VMs? Sure. Let's make #MikroTik #CHR images a bit friendlier for declarative #containerlab use. #RouterOS #NetEng #vrnetlab ghostinthenet.info/chr-in-conta...
MikroTik Cloud Hosted Router Images in containerlab
Pining for turkey and stuffing, I settled for containers and VMs instead. In the process, I've offered some advice on better use of RouterOS in containerlab.
ghostinthenet.info
November 28, 2025 at 3:57 AM
No turkey and stuffing for me, but containers and VMs? Sure. Let's make #MikroTik #CHR images a bit friendlier for declarative #containerlab use. #RouterOS #NetEng #vrnetlab ghostinthenet.info/chr-in-conta...
I didn't •mean• to do it, but while going down rabbit holes this week I switched from EVE-NG to #ContainerLab. Took a bit to get the SSH keys and jumps working, but they work. #EdgeShark is amazing, though I had rebuild cshargextcap to properly support mDNS. Write-up will be forthcoming. #NetEng
November 26, 2025 at 9:47 PM
I didn't •mean• to do it, but while going down rabbit holes this week I switched from EVE-NG to #ContainerLab. Took a bit to get the SSH keys and jumps working, but they work. #EdgeShark is amazing, though I had rebuild cshargextcap to properly support mDNS. Write-up will be forthcoming. #NetEng
Nationalism is just narcissism at scale.
November 26, 2025 at 12:58 PM
Nationalism is just narcissism at scale.
Interesting behaviour confirmed by @mikrotik.social support. If RouterOS’ DNS client gets an A record and a AAAA record in response to a query, it will use the A record and never fall back to the AAAA record regardless of IPv4 reachability. Methinks that’s a bug.
November 21, 2025 at 3:11 PM
Interesting behaviour confirmed by @mikrotik.social support. If RouterOS’ DNS client gets an A record and a AAAA record in response to a query, it will use the A record and never fall back to the AAAA record regardless of IPv4 reachability. Methinks that’s a bug.
In network architecture, we desperately try to avoid shared fate when building resilient designs. The application architectures that rely exclusively Cloudflare or (a couple of weeks ago) AWS US East don’t appear to have made the same efforts. #NetEng #SharedFate #Down #Outage
November 18, 2025 at 1:29 PM
In network architecture, we desperately try to avoid shared fate when building resilient designs. The application architectures that rely exclusively Cloudflare or (a couple of weeks ago) AWS US East don’t appear to have made the same efforts. #NetEng #SharedFate #Down #Outage
“Prompt engineering” is the latest iteration of “being really good at Googling” but without the ability to easily evaluate the credibility of the source material. #AI
November 16, 2025 at 1:12 PM
“Prompt engineering” is the latest iteration of “being really good at Googling” but without the ability to easily evaluate the credibility of the source material. #AI
There’s always another 🕳️ to go down. Now it’s a packet-level analysis of raw L2TPv3 pseudowires vs UDP encapsulated ones to find out •why• the raw ones come in with a lower automatic MTU than the UDP ones do. On the surface, this makes no sense. #NetEng #Labbing #L2TP #MTU #TunnelsAllTheWayDown
November 10, 2025 at 7:55 PM
There’s always another 🕳️ to go down. Now it’s a packet-level analysis of raw L2TPv3 pseudowires vs UDP encapsulated ones to find out •why• the raw ones come in with a lower automatic MTU than the UDP ones do. On the surface, this makes no sense. #NetEng #Labbing #L2TP #MTU #TunnelsAllTheWayDown
Companies hiring for junior positions that need years of experience should raise an eyebrow. Organizations that aren’t hiring for junior positions at all should raise both.
November 7, 2025 at 11:54 AM
Companies hiring for junior positions that need years of experience should raise an eyebrow. Organizations that aren’t hiring for junior positions at all should raise both.
Companies have been making excuses about developing their people for years with that tired “But what if we train them and they leave?” mantra. At the very same time, they’re only looking to hire folks with existing experience from organizations that •did• develop their people. There’s a disconnect.
November 7, 2025 at 11:53 AM
Companies have been making excuses about developing their people for years with that tired “But what if we train them and they leave?” mantra. At the very same time, they’re only looking to hire folks with existing experience from organizations that •did• develop their people. There’s a disconnect.
The problem with labbing cool networking ideas? Rabbit holes. Every step along the way, there’s another “Oh! Wouldn’t it be better if I integrated •this• idea?” Taking the red pill leads to a fun day of network geekery, but doesn’t get me any closer to the original goal. 1/2
November 2, 2025 at 4:19 PM
The problem with labbing cool networking ideas? Rabbit holes. Every step along the way, there’s another “Oh! Wouldn’t it be better if I integrated •this• idea?” Taking the red pill leads to a fun day of network geekery, but doesn’t get me any closer to the original goal. 1/2
Discovering that something is a DNS problem rather than a network problem feels good… until we learn to accept the fact that DNS is a fundamental network service. If it’s DNS, it’s the network. The real joy comes from it not being •my• network’s DNS that’s at fault. #NetEng #DNS
October 30, 2025 at 11:40 AM
After two weeks of banging my head against this multicast routing lab, I finally found the problem. The default TTL for •all• multicast packets on Linux is 1. Of course, I overlooked the simple stuff in my troubleshooting, as one does. #NetEng #Multicast #Troubleshooting #LessonLearned #ThereAreDays
October 25, 2025 at 5:07 PM
After two weeks of banging my head against this multicast routing lab, I finally found the problem. The default TTL for •all• multicast packets on Linux is 1. Of course, I overlooked the simple stuff in my troubleshooting, as one does. #NetEng #Multicast #Troubleshooting #LessonLearned #ThereAreDays
I haven’t played extensively with multicast routing for a little over a decade, but here I am grinding the rust off of the metal. Gotta stay fresh if I want to engage in silly proof-of-concept labs. #NetEng #Milticast #Labbing #WorthIt
October 13, 2025 at 4:53 PM
I haven’t played extensively with multicast routing for a little over a decade, but here I am grinding the rust off of the metal. Gotta stay fresh if I want to engage in silly proof-of-concept labs. #NetEng #Milticast #Labbing #WorthIt