- Roundtable - muug.ca

weird web hit 80 & 443?
by Trevor Cordes 19 Apr '24

19 Apr '24

5.6.7.8 - - [17/Apr/2024:00:17:59 -0500] "GET / HTTP/1.0" 400 362 "-" "-" sampledomainfoobar.com 1.2.3.4 80 443 HTTP/1.0 - - 56 Apache 2.4. LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\" %v %A %p %{local}p %H %f %L %D" teccombinedwithpath How can I get a hit where %p is 80 and %{local}p is 443? https://httpd.apache.org/docs/2.4/mod/mod_log_config.html#formats %p The canonical port of the server serving the request. %{format}p The canonical port of the server serving the request, or the server's actual port, or the client's actual port. Valid formats are canonical, local, or remote. One vhost is listening on 80, the other 443. Pretty standard setup. 80 does a redir to 443. HTTP2 is present, but the hit shows HTTP1. And apache gets confused and throws a 400. Looking at the very few hits like this it seems like some sort of probe: other probes occurring at the same time. Just wondering that they are doing to achieve this hit.

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tor exit node count?
by Trevor Cordes 04 Apr '24

04 Apr '24

Anyone know how many tor exit nodes there are out there?

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Reminder: MUUG Meeting, Tonight, Apr 2, 7:30pm (In-person/Hybrid Meeting) -- AllStarLink
by Gilbert Detillieux 02 Apr '24

02 Apr '24

A reminder that the MUUG meeting will be this evening, both in person and online... The Manitoba UNIX User Group (MUUG) will be holding its next monthly meeting IN PERSON, on Tuesday, April 2nd, at 7:30pm. Yes, that's the FIRST Tuesday of the month... AllStarLink - Ham Radio over IP AllStarLink is a Radio over IP (RoIP) application based on the popular Asterisk VoIP solution. AllStarLink is designed to connect licensed ham radio transceivers using VoIP protocols to allow extended coverage areas by connecting multiple transceivers at different locations together. Wyatt Zacharias will present on the history of amateur radio repeaters in Manitoba, and how they are being modernized with AllStarLink to use IP networks as the backbone for a connected system. Where to find the Meeting: Fortress Software Inc., 350 Keewatin St -- Unit #2 We have a new in-person meeting location now! Brad Vokey has graciously let us use his work office for our next in-person meeting. The meeting room will be open by 7:00 pm, with the actual meeting starting at 7:30 pm. If driving, enter the lot using the most north east entrance and drive around to the south west corner of the building (see route in map detail on poster linked below). You can use any of the free, ample, and safe parking spots that say "reserved" in front of units #1 through #4 before entering unit #2. Bus stops #30814 and #30880 (route 77) are only 150 meters away. The last bus leaves for Polo Park at 10:15 pm and for Garden City at 10:31 pm. Logan Ave. bus routes #19, #26, and #27 are a 600 meter (8 minute) walk to the south. For those unable or preferring not to attend in person, the meeting will also be available online, using BBB as usual. Stay tuned to our muug.ca home page for the official URL, which will be made available about a half hour before the meeting starts. (Reload the page if you don't see the link, or if there are issues with connecting.) The group now holds its meetings at 7:30pm on the *first* Tuesday of every month from September to June. (There are no meetings in July and August.) Meetings are open to the general public; you don't have to be a MUUG member to attend. For more information about MUUG, and its monthly meetings, check out their web server: https://muug.ca/ Help us promote this month's meeting, by putting this poster up on your workplace bulletin board or other suitable public message board, or linking to it on social media: https://muug.ca/meetings/MUUGmeeting.pdf -- Gilbert E. Detillieux E-mail: <gedetil(a)muug.ca> Manitoba UNIX User Group Web: http://muug.ca/

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Printing from Windows to WSL back to Windows USB...
by Adam Thompson 02 Apr '24

02 Apr '24

I know some of you are still hanging on to old printers that Win10/Win11 don’t support anymore, here’s how you can work around that IF they’re still supported under Linux: Reviving an older printer with Ubuntu WSL and Printer Application Snaps - OpenPrinting<https://openprinting.github.io/wsl-printer-app/> If you’re devoted enough to a printer, this might be useful… but man, that better be one heck of a nice printer. -Adam

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Security vulnerability: Watch out for xz
by Alberto Abrao 30 Mar '24

30 Mar '24

Nasty one... https://www.openwall.com/lists/oss-security/2024/03/29/4 https://www.redhat.com/en/blog/urgent-security-alert-fedora-41-and-rawhide-…

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MUUG Meeting, Tuesday, Apr 2, 7:30pm (In-person/Hybrid Meeting) -- AllStarLink
by Gilbert Detillieux 27 Mar '24

27 Mar '24

The Manitoba UNIX User Group (MUUG) will be holding its next monthly meeting IN PERSON, on Tuesday, April 2nd, at 7:30pm. Yes, that's the FIRST Tuesday of the month... AllStarLink - Ham Radio over IP AllStarLink is a Radio over IP (RoIP) application based on the popular Asterisk VoIP solution. AllStarLink is designed to connect licensed ham radio transceivers using VoIP protocols to allow extended coverage areas by connecting multiple transceivers at different locations together. Wyatt Zacharias will present on the history of amateur radio repeaters in Manitoba, and how they are being modernized with AllStarLink to use IP networks as the backbone for a connected system. Where to find the Meeting: Fortress Software Inc., 350 Keewatin St -- Unit #2 We have a new in-person meeting location now! Brad Vokey has graciously let us use his work office for our next in-person meeting. The meeting room will be open by 7:00 pm, with the actual meeting starting at 7:30 pm. If driving, enter the lot using the most north east entrance and drive around to the south west corner of the building (see route in map detail on poster linked below). You can use any of the free, ample, and safe parking spots that say "reserved" in front of units #1 through #4 before entering unit #2. Bus stops #30814 and #30880 (route 77) are only 150 meters away. The last bus leaves for Polo Park at 10:15 pm and for Garden City at 10:31 pm. Logan Ave. bus routes #19, #26, and #27 are a 600 meter (8 minute) walk to the south. For those unable or preferring not to attend in person, the meeting will also be available online, using BBB as usual. Stay tuned to our muug.ca home page for the official URL, which will be made available about a half hour before the meeting starts. (Reload the page if you don't see the link, or if there are issues with connecting.) The group now holds its meetings at 7:30pm on the *first* Tuesday of every month from September to June. (There are no meetings in July and August.) Meetings are open to the general public; you don't have to be a MUUG member to attend. For more information about MUUG, and its monthly meetings, check out their web server: https://muug.ca/ Help us promote this month's meeting, by putting this poster up on your workplace bulletin board or other suitable public message board, or linking to it on social media: https://muug.ca/meetings/MUUGmeeting.pdf -- Gilbert E. Detillieux E-mail: <gedetil(a)muug.ca> Manitoba UNIX User Group Web: http://muug.ca/

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git subtree push suddenly got very slow?
by Trevor Cordes 23 Mar '24

23 Mar '24

All of a sudden about a month ago git subtree push from one local repo to another local repo got very slow. (Note: "subtree".) Like 90 secs instead of maybe 15s. Anyone else have this? Any solutions or chatter? I couldn't find anything except years-old chatter, which doesn't seem to apply. This feels like a new thing/bug, not a "I hit a weird corner case".

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Editing long command lines
by Adam Thompson 20 Mar '24

20 Mar '24

I had no idea this shortcut existed! This is an issue for me at least once a month, I hope I remember it next time I need it! https://nuclearsquid.com/writings/edit-long-commands/ -Adam Get Outlook for Android<https://aka.ms/AAb9ysg>

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What do I have to do to get some scam sites shut down?
by Brian Lowe 18 Mar '24

18 Mar '24

Recently I've received SMS alerts regarding package delivery problems directing me to three different scam sites: * completeshipingform.info (note the misspelling) * shipment-overview.info * shipmentsetback.info The sites masquerade as Canada Post and are stealing people's names, addresses, phone numbers, birth dates, and credit card info. They are designed for mobile devices; if the user-agent indicates a desktop browser they redirect to Google. (One can get around this by installing an add-on to spoof the user-agent.) I complained to NameSilo, the registrar. They told me they don't care what's running on the site they've registered. I've filed multiple complaints with Alibaba Cloud, who are apparently hosting these sites. They've done nothing. A chat with customer support indicated they want to get "their side" of the story--that is, the customer who put up the site. This is extremely disingenuous on their part, as it's obvious the sites are scams and exist only to steal information. I'm disappointed and frustrated at the lack of response to thieves and scammers openly operating on the web while the gatekeepers sit aside and do nothing.

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double-natted ssh weirdness
by Trevor Cordes 17 Mar '24

17 Mar '24

I have a double-natted setup on one side (don't ask). I have port-forwarding working all the way through into a linux box behind the double-nat. Can connect great. But certain things seem to make the ssh connection "pause", for like 2-3 mins. It usually recovers and I can continue like nothing ever happened. What triggers it seems to be sudden medium-large output, like if I run an ll or start top. Commands with little output don't seem to affect it, but sometimes they do, especially if the connection has been idle. It'll show me typing the command and then pause when I hit enter. Rang bells, so I look at mss/mtu in past firewall setups and get the iptables magic to clamp the mss. If I install the rule on the box then it seems to make the pause problem go away, mostly. But often after idling the problem will return. As always, I'm hazy on the mss/mtu, and usually solve these with trial and error -- if indeed this is another mss/mtu problem. (The gear involved is all very old.) Instead of just shooting random clamp mss rules in the dark, I thought I'd hit up MUUG for ideas. I'd love to know how you can tell what the mss/mtu has been chosen on a given connection. Also, do I need to run a clamper on both sides? Or maybe other ideas that have nothing to do with mss/mtu? What I've tried so far: iptables -A INPUT -i eth1 -m tcpmss --mss 1397: -p tcp --dport ssh --tcp-flags SYN,RST SYN -j TCPMSS --set-mss 1396

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