Have an honest doubt troubleshooting network design questions are on topic here. These kind of questions without a drawing/diagram are not easy to visualize and answer. — Rui F Ribeiro2 mins ago
That's... a fair point @RuiFRibeiro. I kinda feel it is on topic, since the whole thing is running on *nix, but I don't really know enough about netowrking to judge if the issue is down to the nix side or the routers.
@Kusalananda Oh, yes. I posted it here because he makes a valid point and I don't know.
I have a Clonezilla installation on a USB stick and I'd like to make some modifications to the operating system. Specifically, I'd like to insert a runnable script into /usr/sbin to make it easy to run my own backup command to make backups less painful.
The main filesystem lives under /live/fil...
@terdon From the point of view of finding an answer, it would be better suited over there. As for whether it's on topic here, I really don't know... It's not really off topic, is all I think I can say.
I made a squashfs image from my system root, I want to put it on a USB drive among some Live ISOs, and make boot menu using GRUB2.
What kernel boot parameters should I use to specify that Squashfs image as root file-system?
I used this as grub configuration, but Dracut fails to find and mou...
@RuiFRibeiro aren't most of those connected wirelessly? I have my laptop, a raspberry pi I use as a media server/backup device, a range extender and a cellular network range extender plugged into my router. Th chromecast is wireless.
And the router (modem/router) also acts as a wireless AP. Why would you connect your chromecast, smartTV and Apple tv to the router?
@Terdron I have not talked about the wireless stuff I have, only the wired.... ;) Speed and wireless interference....I have a chromecast pro, it is both wired and wilreless. I live near an airport, and have like 100 APs from neighbours around....
In most cases setting them up with a 5Ghz wifi network would have solved their problem but 2.4Ghz is too saturated in most populated areas and has way too much interference
Wi-Fi congestion, especially in the 2.4GHz range, is a serious problem in some areas. It is widespread enough that there are many guides to choosing a less congested channel. E.g. https://www.howtogeek.com/197268/how-to-find-the-best-wi-fi-channel-for-your-router-on-any-operating-system/
Given t...
> The channels used for WiFi are separated by 5 MHz in most cases but have a bandwidth of 22 MHz. As a result channels overlap and it can be seen that it is possible to find a maximum of three non-overlapping channels. Therefore if there are adjacent pieces of WLAN equipment that need to work on non-interfering channels, there is only a possibility of three. There are five combinations of available non overlapping channels are given below:
Ah, what about the range extender which is set to broadcast a second SSID but is on the same network, should that be on the same channel as the main AP?
@RuiFRibeiro I had some issues with that so I turned it off. Some of our devices couldn't connect and there were just too many SSIDs in a small house for it to be worth keeping.
@terdon it depends on equipment....some routers make a requirement using the same channel....if using a different channel in openwrt you can make a cutoff that "after x" meters you drop the signal
@RuiFRibeiro OK, but assuming I'm using regular cheapo stuff (tp-link, not the crap your ISP gives you, but low end) and they don't set any requirement, is there any reason to choose the same channel? Or any reason to not choose the same one?
@Jesse_b This powerline trick is really quite good and simple. I used to have a router in the living room and the powerline thing in my office and just ran an ethernet cable to that instead of having to run it all the way to the living room. Sure, it's not quite as fast as ethernet directly to the router, but considerably faster and more stable than wifi.
@terdon not much reasons.... wifi do not do handover, they tend to stay tied to the AP they are with, so no benefits on choosing the same SSID on iddferent APs
@terdon If you have an AP on the north end of your house and on the south end of your house both with the SSID "terdon" when you connect in the north end and walk to the south end it will not automatically switch to the south AP
@terdon when the signal is weak according to a pre-defined parameters, the AP drops it. In my case for downgrading it to 2.4GHz when I go from the living room to bedroom
@Jesse_b I set a cutoff where when walking from my living room to the other side of the house the AP shuts me off 5GHz on purpose for falling on 2.4GHz and keeping having a good connection
Wife arrived from work....see you later on, enjoy your night.
@RuiFRibeiro OK. And any reason not to share the same channel? Will that cause interference? I'd like to have them on the same one since I can't find 2 channels with low interference.
@Jesse_b Ah, right. And can you force that? I'd love to be able to have my phone switch from networkA to networkB when I move from my office to my living room.
I know you can configure computers to do that, but is there a way to force the APs to do it for you?
@terdon It depends on the distance...they can cause interferences. Ideally you would use different, but if you have a lot of neighbours and a big house, you choose the lesser of the two evils.
@terdon I'm not sure how to do force it from the device, but some of the cisco equipment I have worked with have the functionality built into the controller and it's pretty easy to configure
Yeah, I hadn't seen the last message. You confused me when you said you didn't want to pay for it, I thought you meant you didn't want to pay for fiber.
I'm surprised nobody gave me crap for my indentation style there. I don't see anyone else do it that way but I really like it. I think of the terminator almost like a fi in an if construct and therefore it would go in-line as the opener
I guess, I will still do it on the same line if the structure permits thing) command;; but if it's a multi-line command I like to separate the terminator from the commands. That's all preference though of course
> This style guide is strictly the wildly unjustified opinions of Jesse_b. You are strongly encouraged to disregard everything found herein. This guide is intended to provide a set of rules and best practices related to the styling and formatting of your bash scripts. As it is a style guide, one can be almost certain it will not accomplish this task. Instead it will contain a list of vastly arbitrary opinions that will serve as nothing more than an argument catalyst.
@Fabby heh, I used to do "FBIVAN${RANDOM}" but that's quite common here lately. I also keep my SSID hidden now as I don't usually have house guests but also have a guest network
case_clause : Case WORD linebreak in linebreak case_list Esac
| Case WORD linebreak in linebreak case_list_ns Esac
| Case WORD linebreak in linebreak Esac
@Kusalananda, I was mostly wondering why Bash's manual would make that kind of an error, while the program itself accepts the version without a final terminator just fine.
@ilkkachu Easier to explain? I dunno. I'm trying to get onto the bash bugs mailing list to report a few other documentation bugs, so I might as well report this too.
Is it possible to pipe a list of numbers into sed?
The pipeline I currently have looks something like:
grep -nP 'foo' file_full.txt | sort | awk -F'[:;\t]' '{print $1,$3,$9,$13}' | sed 'stuff'
The output of this pipeline looks like:
15
32
12
505
190
1473
I would like to finish the pipelin...
@JeffSchaller I thought I subscribed to it yesterday from the web, but got nothing from there. Going to try again tomorrow. I want to be on the actual list too.
This is why the OpenBSD team wrote doas as a replacement for sudo. sudo was to complex to configure. This guy wants to allow users to delete files as root but he doesn't really know the syntax... unix.stackexchange.com/questions/502302/…
The OP thinks we will solve all their puzzles....it took me months to crack (free)Radius, and was not entirely stranger to it (and I have a networking brackground)...
And knowledge of biology is helpful but not essential. A lot of the problems can be expressed in terms of simple text parsing, something you know how to do very well.
@terdon Haven't finished. Final project partner turned out to be . . . unco-operative and I got insomnia. So 3/4 classes last semester went into /dev/null
@Tim That manual is written by the author of mawk who eventually went on to contribute to gawk. He wrote the manual to attempt to apply to most versions of awk
and I don't use mawk intentionally, when I answered your one question I happened to be testing on a debian machine that shipped with mawk. I normally use gawk
I don't think I ever properly watched a Star Treck episode, only brief clips form movies and episodes on YouTube in videos that touch on the subject. And I think some of the "CinemaSins" reviews
@RuiFRibeiro Talk about marketing tactics. TV companies probably pay ISP providers for that. So if customer wants just the internet ISP will still make money out of customer's pocket
I run sudo mksquashfs /usr /usr_squash/usr.sfs -b 65536 -comp xz
I add to fstab:
/usr_squash/usr.sfs /usr_squash/sq squashfs loop,ro 0 0
overlay /usr overlay defaults,lowerdir=/usr_squash/sq,upperdir=/usr_sq...
I made a squashfs image from my system root, I want to put it on a USB drive among some Live ISOs, and make boot menu using GRUB2.
What kernel boot parameters should I use to specify that Squashfs image as root file-system?
I used this as grub configuration, but Dracut fails to find and mou...
Is it possible to pipe a list of numbers into sed?
The pipeline I currently have looks something like:
grep -nP 'foo' file_full.txt | sort | awk -F'[:;\t]' '{print $1,$3,$9,$13}' | sed 'stuff'
The output of this pipeline looks like:
15
32
12
505
190
1473
I would like to finish the pipelin...
