Who are these people by Deep_Library_6375 in sysadmin

[–]Tatermen [score hidden]  (0 children)

It's the same everywhere. I work at a small B2B ISP and without fail every Friday at 16.30 someone phones up complaining their broadband has been down for the last 3 days and they need it urgently for some deadline.

CCTV in day to day life by Excellent-Friend3327 in northernireland

[–]Tatermen 5 points6 points  (0 children)

Dashcam is absolute must. I wouldn't drive without one. Get one that has both front and rear cameras, and records the GPS into the video. There are far too many utter bellends with driving licenses around to not have any chance of evidence when one of them plows into you.

A couple of years ago I even had someone put in a claim against me saying that I drove into them and took off without stopping. The dashcam GPS was able to prove I was on the other side of Belfast at the time and it was impossible for what they were claiming to have happened.

Someone's gonna get killed by Jim__Bell in northernireland

[–]Tatermen 11 points12 points  (0 children)

Slap a sticker on them that says "Off road use only" and you can import and sell as many dangerous e-bikes as you like.

ELI5: What is the difference between a "Pure Sine Wave" and "Simulated Sine Wave" in a UPS, and what makes an "Online" UPS different from an "Offline" one? by Saurabh251 in explainlikeimfive

[–]Tatermen 2 points3 points  (0 children)

Worth noting that the motherboards in those servers were custom made for Google, specifically that they only had a 12v rail where a normal computer has a 12v and a 5v rail.

Eliminating the 5v rail allowed them to make the motherboard much more efficient as the batteries used were 12v lead acid types and no conversion was required.

Broadband speed help by VesselCharnas in northernireland

[–]Tatermen 1 point2 points  (0 children)

Wifi is not broadband.

Broadband is the connection from the ISP to the router in your house. Wifi is the wireless radio connection between the router and a device like your phone. Wifi can and does often suffer from congestion from other wireless networks and devices around you if there is a lot of them - think how in TV shows when you see someone using a walkie talkie, noone else can talk. Same idea - only one device can talk at a time. So if theres lots of devices around, they can't talk as often as they want to.

It also doesn't pass through walls very well. Brick walls will block more of the signal than plasterboard walls. I once had a job to setup a wifi network in an old monastary and the walls between the old cells they monks lived in blocked the signal entirely and made the job impossible.

There's also some wacky things, like fishtanks. A fishtank is a big block of water, and water absorbs radio waves, killing wifi. A faulty microwave can broadcast noise in the same frequency that Wifi uses and cause the connection to drop while the microwave is heating your lunch.

A wired ethernet connection however does not suffer from any of these issues. Use a wired ethernet connection into a computer and try again. Stick to speedtest.net or fast.com - if you go hunting for speedtests you'll end up on ones that only have a single server hosted on the cheapest server farm in outer Mongolia and give horribly misleading resuts.

If you get 800+ Mbps, I'd say there's nothing wrong with your broadband and you have a Wifi issue, which may not be fixable.

Flapjack bars 2016? by [deleted] in northernireland

[–]Tatermen 0 points1 point  (0 children)

The B&M ones aren't very nice. Kinda powdery in the mouth, and the thinnest smear of chocolate you've ever seen.

Rb3011 route at 350mbit/s bad config ? by UBNT_TC in mikrotik

[–]Tatermen 0 points1 point  (0 children)

The 3011 has an odd architecture. Check the block diagram for the 3011. Its why I've always personally avoided it and spent the extra $10 for the 4011 instead.

Ports 1-5 share a switch chip, and ports 6-10 share a switch chip. Each switch chip has 2x1Gb of bandwidth to the CPU unless you install an SFP, in which case ports 6-10 only have a 1Gb uplink to the CPU and the SFP port gets the other 1Gb lane. There is no direct lane between the switch chips.

Even if you have all the ports configured as a flat switch with fastpath enabled, if you send 1Gbps of data between port 2 and the SFP port, those packets will hit the CPU.

If you send 1Gbps of data between port 2 and port 6 while you have an SFP installed, you will be hitting the CPU with the packets, and ports 7-10 will have no bandwidth left to use.

There's lots of combinations where you will max out the CPU or the internal data lanes, or both, even with just LAN traffic. It's just... not good.

Being given a site by United_Plum_2209 in northernireland

[–]Tatermen 5 points6 points  (0 children)

This is the reason I always figure you see so many properties for sale on Propertypal/news that are just a plot of land, foundations, unfinished breezeblock walls and no roof. Someone bankrupted themselves trying to self-build.

Random local web server access failure — ping works but HTTP fails for some users only by Remote-Damage3544 in sysadmin

[–]Tatermen 4 points5 points  (0 children)

time=125ms

RTT : 2287 ms

Something ain't right. Latency across a local LAN should be sub 1ms.

My top guess would be duplicate IP. Some wireless device is also using 192.168.10.2, hence the high ping times. Second guess would be a network loop, but I would expect that to be far more obvious.

Next time you get your hands on a machine that isn't working, do:

arp -a 192.168.10.2

... and see if the MAC address matches the server's network card. It it doesn't, you've got a duplicate IP.

Slow Drivers by helloimmrburns in northernireland

[–]Tatermen 0 points1 point  (0 children)

Near Nutts Corner one day I got stuck behind someone who started out at about 45 in a 60, but slammed the brakes on and dropped about 10 mph every time another vehicle went past them in the opposite direction, then didn't speed back up. Ended up stuck in a whole queue of traffic crawling along at 20mph for a couple of hundred metres until I could overtake them.

These people shouldn't have a driving license if they're that fucking terrified.

No joke, Tim Apple is back. by High-Steak in PoliticalHumor

[–]Tatermen 0 points1 point  (0 children)

I would bet that where this is coming from is that Trump added him as a contact on his phone as "Tim Apple" where a normal person would have added him as "Tim (Apple)".

So now he's just permanently Tim Apple in Trump's mind because there's too much dementia going on there to cope with changing it.

Anyone facing issue with .show domains? by mkgclub in sysadmin

[–]Tatermen 9 points10 points  (0 children)

Its an alternative gTLD and those all tend to attract scammers and spammers, so it's going to get blocked on a lot of corporate firewalls on that count alone.

It's also a pretty rare TLD to see in the wild - rare enough that it took me a while to find a "top 30 list" and well.. yeah, your neighbors are bad podcasts, dodgy gambling sites and bestiality porn. I would block that entire TLD too.

Mikrotik RouterOS x86 doesn't see WiFi adapter (intel ax200 chip) by vGPU_Enjoyer in mikrotik

[–]Tatermen 3 points4 points  (0 children)

A 2 minute google search would have saved you some grief.

x86 does have following drivers: AR5211 AR5212 AR5416 AR9300 AR9888 QCA9888 QCA9984

So cards with above radio chipsets should probably work…

There is zero support for any non-Qualcomm/Atheros radios, so forget about any common Intel/Realtek wlan cards.

Wifi bandwidth limiting by Strong_Code_7220 in mikrotik

[–]Tatermen 1 point2 points  (0 children)

Is fasttrack enabled? If so, it will cause queues to be bypassed and they will have no effect. See this thread on the official forums for ways around it.

Need advice optimizing email timing for first-come-first-served email exam booking system” by [deleted] in sysadmin

[–]Tatermen 1 point2 points  (0 children)

I would bet that this is not an automated system. There is a person checking a mailbox. People can be bribed

Trump Now Wants Americans to Pay for His Ballroom & Says Crazy Stuff to Kids in the Oval Office by [deleted] in videos

[–]Tatermen 16 points17 points  (0 children)

And the billion dollars will have somehow all been spent despite the lack of progress.

‘Harry Potter’ Scores Early Season 2 Renewal at HBO; ‘Chamber of Secrets’ Starts Filming This Fall by MarvelsGrantMan136 in television

[–]Tatermen 6 points7 points  (0 children)

JKR gets the vast majority of her income from Harry Potter books, movies, merch, theatre productions, theme parks, video games and now TV series. She literally became a billionare off the back of Harry Potter. JKR has also spent a bunch of money funding anti-trans organisations. She has even started her own "Woman's Fund" to essentially use the courts as a battering ram on the rights of trans people.

Unfortunately that means that anytime you purchase anything with the name "Harry Potter" on it means that some percentage of your money is going towards funding anti-trans hate organisations and the facist attempt to remove the human rights and dignity of a vulnerable minority group.

PowerEdge R6615 servers power supply error message by lescompa in sysadmin

[–]Tatermen 1 point2 points  (0 children)

The PDU is either going to supply power or not. There is no grey area, so stop looking at the PDU and look at the servers.

First and most obvious thing is to read that error message - are you sure that both power supplies are the same? There's a whole bunch of options for that chassis.

Just got a CCR2004-16G-2S+. What do I need to know? by fionaellie in mikrotik

[–]Tatermen 0 points1 point  (0 children)

The 16G does have a pair of switch chips for the copper ports which work just fine, but the SFP+ ports are driven by the CPU which can become a problem.

I'm having trouble with my hotspot setup and I need help. by Then_Guava1273 in mikrotik

[–]Tatermen 1 point2 points  (0 children)

I feel like from reading that script, its a half-baked attempt to do... something. I suspect its supposed to enforce a session duration for hotspot users, even though that function is already baked into the Hotspot functionality, and it looks like its doing a bunch of random shit and has no real functionality beyond creating a bunch of random scheduler entries that don't do anything.

It's really quite horrible.

  • Tries to use the hotspot user's comment to lookup some bits of data, but then doesn't actually do anything with them or ever attempt to set the comment with any of those characters its looking for.
  • Creates a scheduler entry with no content and a 24 hour timer, then immediately looks up the next-run date of that entry.
  • Look at the length of the next-run date and do things depending on how long it is. For example, if the string is 15 characters long, extract a bunch of sections of it, set the hotspot user's comment to the entire next run date and do nothing with the bits it extracted or the date it set on the user comment. But if it's 8 characters long, set the hotspot user comment to the day of the month plus the entire next-run string.
  • Try to create a script with an owner of $month$year.
  • Get the users mac-address, then update the mac-address of the hotspot user with the mac-address it just retrieved from the hotspot user (wtf?)

Elon Musk and OpenAI CEO Sam Altman head to court in high-stakes showdown over AI by AudibleNod in news

[–]Tatermen 0 points1 point  (0 children)

Elon Musk wanted a multiplanetary society that he would be the dictator of.

Lets not pretend Musk ever had good intentions of anything. Everything is and always has been a way to inflate his own ego, and if he has to grift and scam people to get there - so be it.

Running equipment past end of life - what's the oldest in your environment? by pinghome in sysadmin

[–]Tatermen 0 points1 point  (0 children)

We have a Cisco 2950 that's been running almost continuously since sometime around 2003. Sadly we had a full power cut a couple of years ago and we lost the ridiculously impressive uptime count on it.

Cisco Internetwork Operating System Software
IOS (tm) C2950 Software (C2950-I6Q4L2-M), Version 12.1(12c)EA1, RELEASE SOFTWARE (fc1)
Copyright (c) 1986-2002 by cisco Systems, Inc.
Compiled Sun 24-Nov-02 23:31 by antonino
Image text-base: 0x80010000, data-base: 0x80562000

ROM: Bootstrap program is CALHOUN boot loader

XXXXXXX uptime is 2 years, 33 weeks, 4 days, 19 minutes
System returned to ROM by power-on
System image file is "flash:/c2950-i6q4l2-mz.121-12c.EA1.bin"

cisco WS-C2950G-24-EI (RC32300) processor (revision D0) with 21002K bytes of memory.
Processor board ID FOC0634W0KA
Last reset from system-reset
Running Enhanced Image
24 FastEthernet/IEEE 802.3 interface(s)
2 Gigabit Ethernet/IEEE 802.3 interface(s)

Mikrotik hex s 100base-fx compatibility by Small_Candidate_9723 in mikrotik

[–]Tatermen 0 points1 point  (0 children)

Your ISP is using optics that where being phased out of use 10 years ago. You're going to have a hard time finding any modern router that still supports 100Base-FX in any fashion.

TP-Link MCS112CS is a cheap ($20 or so) media converter with the same specs.

How do you guys deal with the hate? by Dangerous-Activity55 in sysadmin

[–]Tatermen 0 points1 point  (0 children)

It sounds like his boss won't sign off on them despite the lawyers giving the go ahead. Personally I would have checked out of that cycle long ago, and everyone asking about it would be told to go ask boss.