February 2024 - Roundtable

MUUG Meeting, Tuesday, Mar 5, 7:30pm (Date Change, In-person/Hybrid Meeting) -- Fluentd
by Gilbert Detillieux 28 Feb '24

28 Feb '24

The Manitoba UNIX User Group (MUUG) will be holding its next monthly meeting IN PERSON, on Tuesday, March 5th, at 7:30pm. Yes, that's a week early, i.e. the FIRST Tuesday of the month... Fluentd Alberto Abrao will present and demo fluentd. According to their website, "Fluentd is an open source data collector for unified logging layer." Fluentd is lightweight enough that you can host it on a Raspberry Pi or similar low-end device. The presentation will walk us through the configuration of a machine that will serve as a "log aggregator," and a couple of others that will send their logs to it. All logs will stay in plain text, as the "Gods of UNIX" intended. 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.) *Date Change* Please note the change in meeting date for this month, and for the rest of the current year: We are now meeting on the first Tuesday of each month. 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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Wifi recommendations
by Kevin McGregor 28 Feb '24

28 Feb '24

I have a Netgear Orbi mesh (1 base + 1 satellite) in my house. They're about 6 years old and don't support Wifi 6 (802.11ax?). I've noticed that in my basement it works pretty well, but upstairs the effective data rate drops off VERY quickly when I move away from the router (satellite). I figure this is because of the large number of wifi routers in my neighbourhood competing for the same bandwidth. Would upgrading to a Wifi 6-capable router help? Any other suggestions?

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Cat 6 cable
by Kevin McGregor 27 Feb '24

27 Feb '24

What's the going price for a 1000' box of Cat 6 cable? Is there a good place to buy it in Winnipeg, or order online? I'm thinking of running some network cable in my house, most likely 1 GbE. I had previously used Cat 5E. Should I stick with that instead of 6?

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Getting disk sizes of mountpoints
by Kevin McGregor 22 Feb '24

22 Feb '24

With 'lsblk' I can get something like this: NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 20G 0 disk └─sda1 8:1 0 20G 0 part ├─vg0-root 253:0 0 15G 0 lvm / └─vg0-var 253:1 0 5G 0 lvm /var sdb 8:16 0 100G 0 disk └─sdb1 8:17 0 100G 0 part └─vg1-data 253:2 0 100G 0 lvm /mnt/data sr0 11:0 1 1024M 0 rom What I'm looking for is output like: / 15G /var 5G /mnt/data 100G So I just want the size of the block devices which are actually mounted. I'm wondering what is the most reliable way to produce the second output. I can just grep for 'lvm', but I can't guarantee the mounts are all LVM type. I can grep for ' 253:', but is the 253 going to be reliable? What does 253 even mean? >From https://www.kernel.org/doc/html/latest/admin-guide/devices.html : 240-254 block LOCAL/EXPERIMENTAL USE Allocated for local/experimental use. For devices not assigned official numbers, these ranges should be used in order to avoid conflicting with future assignments. ... which isn't encouraging. Is that list outdated? grep for '/'s?

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Support group?
by Kevin McGregor 20 Feb '24

20 Feb '24

Does anyone know of a Winnipeg-based group for SREs (Site Reliability Engineers)? Does anyone know any SREs in Winnipeg?

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Fwd: Re: How to set up and use static IP from Rogers/Shaw
by Hartmut W Sager 15 Feb '24

15 Feb '24

Vijay, I'm forwarding this into MUUG-RoundTable, since it's obviously part of the discussion. ----- Original message ----- From: Vijay Sankar <vsankar(a)foretell.ca> To: hwsager(a)marityme.net Subject: Re: [RndTbl] How to set up and use static IP from Rogers/Shaw Date: Tuesday, February 13, 2024 18:59 Yes, you’re right. It’s the Hitron one. Vijay Sankar ForeTell Technologies Limited vsankar(a)foretell.ca > On Feb 13, 2024, at 2:50 PM, Hartmut W Sager <hwsager(a)marityme.net> wrote: > > I presume your Shaw business modem is a Hitron, possibly the Hitron CODA-5810. That one, just like the former Shaw residential Hitron CGNM-2250, also allows selective IP pass-thru on a per port basis. I wish those dumb residential XB6/XB7/XB8 modems would do that. > > Hartmut > > On Tue 13 Feb 2024 at 13:27:13 -06:00, Vijay Sankar <vsankar(a)foretell.ca> wrote: >> Sure thing. My Shaw business modem is setup the same way Adam mentioned. It also allows me to use wifi and Ethernet NAT’ed through the 192.x interface and just port 2 bridged through to static IP. As you said that does require two firewalls in my case (could have done it with one of course). >> >> Sent from my iPhone >> >>> On Feb 13, 2024, at 13:20, Kevin McGregor <kevin.a.mcgregor(a)gmail.com> wrote: >>> >>> Thank you, Vijay! I'll try to get it working without any additional hardware first, and failing that I'll let you know what I need. >>> >>> On Tue, Feb 13, 2024 at 10:27 AM Vijay Sankar <vsankar(a)foretell.ca> wrote: >>>> Hi Kevin, >>>> >>>> Most of the systems I can give away are older than 5 years. They do have intel Xeon or i7, hot swappable drives, 2 to 6 gbics, 8 to 32 GB etc.. Also I have a 12 port microtik router that may be useful in your situation (I used that to bond a bunch of services from Shaw a few years ago) >>>> >>>> Please let me know if any of this is of interest. >>>> >>>> Thanks, >>>> >>>> Vijay >>>> >>>> Vijay Sankar >>>> ForeTell Technologies Limited >>>> vsankar(a)foretell.ca >>>> >>>> >>>>> On Feb 13, 2024, at 8:32 AM, Kevin McGregor <kevin.a.mcgregor(a)gmail.com> wrote: >>>>> >>>>> I considered bridge mode, but I'm trying to do this without obtaining additional hardware (i.e. a firewall box of some kind). Unless some kind soul out there has a suitable spare box to donate to a non-profit? >>>>> >>>>> On Mon, Feb 12, 2024 at 10:18 PM Adam Thompson <athompso(a)athompso.net> wrote: >>>>>> With my Shaw account, I got them to put the modem into Bridge mode, then I treated the Ethernet 1 port as though it was a port on their router, i.e. I set my firewall’s IP to the assigned static IP.__ >>>>>> If you want to do it with the Shaw modem acting as a router, I have no idea, sorry.__ >>>>>> -Adam__ >>>>>> __ __ >>>>>> *From:* Roundtable <roundtable-bounces(a)muug.ca> *On Behalf Of *Kevin McGregor >>>>>> *Sent:* Monday, February 12, 2024 9:34 PM >>>>>> *To:* Continuation of Round Table discussion <roundtable(a)muug.ca> >>>>>> *Subject:* [RndTbl] How to set up and use static IP from Rogers/Shaw__ >>>>>> __ __ >>>>>> I'm helping out someone with a Shaw Business account, and they have a static IP they'd like to set up and use for one specific server.__ >>>>>> __ __ >>>>>> So generally, how do you set this up? Shaw forwards traffic with that static IP (and the dynamic one, too) to the router, and then... Enable the DMZ feature of the router and set the IP address of the server to the static one from Shaw and it just works? Or is there some other work to do?__ >>>>>> __ __ >>>>>> Thanks for any help,__ >>>>>> Kevin__ >>>>>> __ __ >>>>>> _______________________________________________ >>>>>> Roundtable mailing list >>>>>> Roundtable(a)muug.ca >>>>>> https://muug.ca/mailman/listinfo/roundtable >>>>> _______________________________________________ >>>>> Roundtable mailing list >>>>> Roundtable(a)muug.ca >>>>> https://muug.ca/mailman/listinfo/roundtable >>>> _______________________________________________ >>>> Roundtable mailing list >>>> Roundtable(a)muug.ca >>>> https://muug.ca/mailman/listinfo/roundtable >>> _______________________________________________ >>> Roundtable mailing list >>> Roundtable(a)muug.ca >>> https://muug.ca/mailman/listinfo/roundtable >> _______________________________________________ >> Roundtable mailing list >> Roundtable(a)muug.ca >> https://muug.ca/mailman/listinfo/roundtable >> > > _______________________________________________ > Roundtable mailing list > Roundtable(a)muug.ca > https://muug.ca/mailman/listinfo/roundtable

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Bridging the "Giga" Bell Modem for Fibre
by Alberto Abrao 15 Feb '24

15 Feb '24

Hello everyome, following up on our last meeting's conversation about the Bell "Giga Hub" modem, I would like to ask if someone knows a way to properly set it to "bridge mode". The modem web interface provides a "Advanced DMZ" mode. There, one is able to provide a MAC Address of an interface who'd be receive external IP as the leased address after a DHCP request. The problem with that is, if you reboot the machine, although subsequent DHCP requests will successfully provide the external IP, Internet connectivity gets extremely choppy. The only way to fix it is to reboot the modem. There are many guides on how to do this for Bell, but that refers to Bell itself, not BellMTS. Others also point to settings fotr Bell Alliant (Maritimes). I could not find anything specific for Bell MTS. These settings are often a PPPoE incantation of sorts, username/password and potentially a specific VLAN. Folks in Ontario had luck with 35, Maritimes use 15 or something along those lines, others said you can just use your Bell ID and password. The patterns provided do not make any sense for MTS, as far as I could tell. Calling support would be useless - I tried - seeing that they're all based in Ontario now. Would anyone here know, or know someone who would, the incantation to make this work? -- Kind regards, Alberto Abrao

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How to set up and use static IP from Rogers/Shaw
by Kevin McGregor 14 Feb '24

14 Feb '24

I'm helping out someone with a Shaw Business account, and they have a static IP they'd like to set up and use for one specific server. So generally, how do you set this up? Shaw forwards traffic with that static IP (and the dynamic one, too) to the router, and then... Enable the DMZ feature of the router and set the IP address of the server to the static one from Shaw and it just works? Or is there some other work to do? Thanks for any help, Kevin

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Re: [RndTbl] How to set up and use static IP from Rogers/Shaw
by Vijay Sankar 13 Feb '24

13 Feb '24

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DHCP lease renewal on Debian/Ubuntu
by Kevin McGregor 13 Feb '24

13 Feb '24

Is there a way to force the DHCP client on Debian/Ubuntu to renew its lease ahead of time? For example, if the lease duration is a week, but you want the client to refresh the list of DNS servers immediately. Will "netplan apply" do it? Or "systemctl restart systemd-networkd"? That seems extreme; I don't want a network/service interruption -- things like IP address/netmask/gateway won't change in the case I'm thinking of but other configuration details may need updating. Mind you, I have little idea what all systemd-networkd is responsible for. In Windows, for example, you'd run "ipconfig /renew". Is there an equivalent for Debian/Ubuntu?

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