- Blind-sysadmins - lists.hodgsonfamily.org

Enabling and updating WSL2 and installing a distro on Windows 10 64 Bit
by Simon Eigeldinger 17 Oct '20

17 Oct '20

Enabling and updating WSL2 and installing a distro on Windows 10 64 Bit This is a quick and dirty guide how to enable WSL2 and how to install a distro like Ubuntu. I don't use the Windows Store. This often has older Root FS images and you can't define where to install the disk image later. It just works on Windows 10 64 bit. I heard it also seems to work on ARM64 as well. But then you might need some other instructions. Works on Home, Pro and Enterprise. Enabling and updating WSL1 First we will enable WSL1. This is the old version of WSL and is on by default. So we hit win+r to open the run dialog. then we enter optionalfeatures and hit enter. then we select the checkboxes platform for virtual computers and windows subsystem for linux. then we hit the ok button and the restart button to reboot the computer. Windows then sets up the needed components. After we are in Windows again we download and install the wsl update. That updates the linux kernel for WSL and that it supports WSL2. https://wslstorestorage.blob.core.windows.net/wslblob/wsl_update_x64.msi Enabling WSL2 After we installed above stuff we open a terminal as Administrator. cmd or windows terminal can be used. Then we type wsl --set-default-version 2 to activate WSL2 as default for all new virtual machines. Useful options for the wsl command are for example also: wsl -t distro to terminate and shutdown distributions. wsl --shutdown to shut down the wsl vm server. wsl --help gives much more help to more commands. Downloading and installing Ubuntu 20.04 LTS First let's get WSLDL. This is a 3rd party distro launcher and installer. Latest releases can be found here: https://github.com/yuk7/wsldl/releases/ get the latest launcher.exe. Then we also need a Root filesystem for Ubuntu. This can be found over here: https://cloud-images.ubuntu.com/focal/current/focal-server-cloudimg-amd64-w… Ubuntu 20.10 can be found here. there are already some daily builds available. though they seem to have not all packages available on apt: https://cloud-images.ubuntu.com/groovy/current/groovy-server-cloudimg-amd64… After that we are going to put all things together. First create a directory on a drive where you have enough space. I created a wsl directory on my e drive because i have a lot of space there. On my computer in the office i created that directory on the c drive. then you create a ubuntu directory in the wsl directory. then you copy the launcher.exe into the ubuntu directory and rename it to ubuntu.exe. So your distro name in wsl will be called ubuntu. you can also rename it to ubuntu-20.04.exe. so your distro name will be ubuntu-20.04. Then rename the .tar.gz file you have downloaded to rootfs.tar.gz and copy it as well into the ubuntu directory. Then execute the exe file as admin. a terminal opens and it says installing... then it displays that you need to hit a key and it installed successfully. you then have a ext4.vhdx file in the directory. This is your disk image. you can delete the rootfs.tar.gz if you want. Though i often keep then so if i want to kill the os i can reinstall it. Starting Ubuntu I often create a desktop icon to the exe and enable start as admin in the compatibility tab of the properties. When hitting enter ubuntu starts. Use your standard terminal navigation keys. Note that you have no window menu with alt+space. Maybe ms will enable that again. Would be much nicer to select the whole terminal buffer. Though you can paste things when enabling ctrl+shift keys in the standard settings of the terminal. using cmd you can do it the following way. open a terminal using cmd. then hit alt+space and select standard values. select the use ctrl+shift+c and ctrl+shift+v for copying and pasting checkbox. then you should be able to paste content with ctrl+shift+v. Accessing files in the Ubuntu disk image You can enter \\wsl$\ubuntu\ in explorer to access all the files of the virtual hard disk. Uninstalling Ubuntu Open up a terminal and enter the ubuntu directory. run ubuntu clean to clean the distro using WSLDL. Backing up Ubuntu To create a backup and to also share your distro with some people you can create a backup. That will be a .tar.gz which someone also can import. Like we did above. Open up a terminal and go into the ubuntu directory. Then execute wsl -t ubuntu to terminate ubuntu Then type ubuntu backup --tgz then a backup.tar.gz will be created which you can share or backup. I hope i haven't forgotten anything.

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Installing SageMath on Ubuntu and Arch
by Simon Eigeldinger 16 Oct '20

16 Oct '20

Installing SageMath on Ubuntu and Arch Another quick and dirty install guide. Installing SageMath on Ubuntu Installing packages with apt update apt upgrade apt install cantor-backend-sage maxima-sage sagetex sagemath sagemath-database-conway-polynomials sagemath-database-elliptic-curves sagemath-database-graphs sagemath-database-mutually-combinatorial-designs sagemath-database-polytopes sagemath-doc sagemath-jupyter screen Then set the jupyter password with the command jupyter notebook password Then you are asked for a password. After that we create a notebooks dir and cd into it. then we start the jupyter server. mkdir notebooks cd notebooks jupyter notebook --allow-root When closing the terminal window you will have no server. You can hold it open with screen. The notebook will be available on http://localhost:8888/ with set password. Installing SageMath on Arch The same as above though with the following install commands. pacman -Syu pacman -S sage-data-elliptic_curves sage-numerical-backends-coin sagemath sagemath-doc sagemath-jupyter sagetex screen

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FW: Webinar Wednesday: Let's Look at Linux!
by Andrew Hodgson 16 Oct '20

16 Oct '20

Sight and Sound webinar on Linux. Andrew. From: Stuart Lawler <stuart.lawler(a)sightandsoundtechnology.ie> Sent: 16 October 2020 08:45 To: Andrew Hodgson <andrew(a)hodgson.io> Subject: Webinar Wednesday: Let's Look at Linux! Dear Andrew, Thank you for your interest in Sight and Sound Technology's Webinar Wednesday series. Our sessions run every fortnight, on a Wednesday, at 2:00 pm BST, that's 3:00 pm in Central Europe, and 09:00 am on the East/Coast of America. On our most recent session, a World Sight Day special, which took place on October 7th, we enjoyed a great discussion about technology and life with sight loss. Thanks sincerely to our four panellists Eileen Battersby, Vitoria Alves, Steve Tyler and Paul Ryb for their time and their expertise. If you missed the session, or you would like to catch up again, you can listen here<https://audioboom.com/posts/7700163-webinar-world-sight-day-2020-special-lo…> on our podcast or catch it here<https://youtu.be/TUJaix-Km_A> on our YouTube channel. Next Webinar Wednesday event: Let's Look at Linux! You've probably heard about Linux, as it’s the operating system behind many of the devices that we all interact with every day, but just what can it do and how can people with low or no vision use it? This webinar Wednesday is devoted entirely to Linux accessibility and usability for screen reading, magnification and refreshable Braille technology. Our guest presenter for this session is Andrew Eliasz. Andrew is Director at First Technology Transfer Ltd, a UK-based training and consultancy company offering instructor-led training across a broad range of information technology and software engineering subjects. Andrew has always been an evangelist for the uptake of technology teaching in schools and has a special interest in encouraging more youngsters to take up careers in science and technology. He is also a member of the academic staff at Croydon Tutorial College, a specialist tutoring college based in Croydon, specialising in Maths, Physics, Chemistry and Computer Science tuition, as well as emergency help with homework or project crises. You can register here<https://zoom.us/webinar/register/WN_wanPkpmxQTGtu6i-U25xNA> to attend this session. If you'd prefer not to receive any further Webinar Wednesday notification emails, please reply to this message and just type the word 'unsubscribe' in the message body. Thank you again for your interest in Webinar Wednesday from Sight and Sound Technology. Regards, Stuart Stuart Lawler | Head of Content Creation/Business Development Manager (Ireland) stuart.lawler(a)sightandsoundtechnology.ie<mailto:stuart.lawler@sightandsoundtechnology.ie> T: +44 1604 798070 | DDI: 01 665 0429 | M: 087 9926360 Signup for our newsletter: http://eepurl.com/gYzwsv Are we meeting your expectations? Tell us how we are doing! [Good Rating]<https://web.crewhu.com/#/survey?crewhu_id=5e3a98de063fbc65eea25a03&users_id…> [Neutral rating]<https://web.crewhu.com/#/survey?crewhu_id=5e3a98de063fbc65eea25a03&users_id…> [Poor rating]<https://web.crewhu.com/#/survey?crewhu_id=5e3a98de063fbc65eea25a03&users_id…> Good Neutral Poor [Sight and Sound Technology Logo] [Celebrating 40 years logo] www.sightandsound.co.uk<http://www.sightandsound.co.uk/> Sight and Sound Technology Limited | Lis Cara Business Centre | 51/52 Fitzwilliam Square West | Dublin 2 | D02 X504 Registered in England Company No. 1408275 THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. [Like us on Facebook]<https://www.facebook.com/sightandsoundtechnology/timeline/> [Follow us on Twitter]<https://twitter.com/sightandsoundt> [Follow us on LinkedIn]<https://www.linkedin.com/company/sight-and-sound-technology> [Visit our YouTube channel]<https://www.youtube.com/user/SightAndSoundTech> [Subscribe to our RSS feeds]<http://www.sightandsound.co.uk/rss>

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Remote access - linux machine -> linux machine (GUI)
by Felipe Veiga Ramos 16 Oct '20

16 Oct '20

Greetings all, I'm in need to access the college linux machine remotly to, besides of other things, use the browser and other gui-programs. I would like to know if are there any way to do that, either from a linux or windows machine. In fact I know that probably from a windows one will not be possible, so from a linux one could be the solution. Any of you can give me a hand over here? Thanks -- Felipe Veiga Ramos

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resetting passwords
by Marvin Hunkin 16 Oct '20

16 Oct '20

Hi, with the new kitty system. When I try to reset my password . click on the link. Gives me a network error. And did clear my cache from google chrome for an hour. Any ideas. Just wanted to reset my password. Could not remember. Thanks.

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vm wware issue
by Marvin Hunkin 14 Oct '20

14 Oct '20

Hi. Got vm ware work station. Windows server 2019 essentials 64 bit. On a windows 10 64 bit pro 2004 laptop. Now. When I try to run server manager. When I try to click on add rolls and services. Keeps telling me an error, that no server pool or servers are present. And my sighted trainer as doing a network course from http://www.upskilled.edu.au. Says I have my windows 10 user account and the network. How can I get this to work. Need to do a lab practical. Sisghted sighted students use http://www.heropa.com which is based on hyper v and does not work with jaws, nvda, windows narrator. Any ideas. How to get this to work. And gave permission for my trainer to remote in via team viewer and then turn on audio end points. Any help. Have tried googling, but not found an answer. Thanks. Ps: need to create active directory power shell, trusts, forests, and web stuff.,

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Get your logs or errors sent to a central location.
by Darragh Ó Héiligh 13 Oct '20

13 Oct '20

Hello, You might have also had this problem. I've written scripts in various languages as small as unlocking an active directory account to a full student onboarding system that processes tens of thousands of students every year. But the problem is, when an exception is thrown, I may not ever hear about it because unless I'm actively looking at application logs three years after the application has been deployed, I'm probably going to miss it. So I wrote something. This is kind of reinventing the wheel I'm sure. But my solution is different because it's stupidly simple. You throw your log message, exception, innerException, StackTrace and even custom note at an API point. Give it some information as well such as application name, running environment, AKA dev, staging, dev, UAT or production, Say if the message has been generated by an operating system, application, end user, appliance, network etc then just go about your business. Every so often, log in to the UI and go through your messages. There will also shortly be a graphical dashboard but that stuff will come in a week or two when I get time. Coming soon, I will create a way of taking action on messages based on rules that are user definable. For example, when the message is an error, from the production environment and priority is critical, send an Email, or even trigger a call to another end point. For example IFTTT. Here's what I'm aiming for. CPU usage goes up on a server and I get a message on my Amazon Echo with Alexa telling me what's happened. Or let's say I'm integrating two systems and synchronizing data across. Everything is working perfectly but someone adds a new code to the data and the synchronization breaks. The system that runs this is hosted off site so I don't regularly have access to the logs. That's no problem. The message is Emailed to me so I have a full record of what happened. I can even do my investigation remotely through the exception,stack trace and inner exception. The API is asynchronous and has been tested on just one server with over 10,000 calls in one minute. So it will handle lode. If you want to try it, your welcome. https://logs.itmanagement.systems Let me know off list and I'll set you up with an account. This is not an advertisement by the way. I'm offering it to people on this list for free. I will want to try to make some money on it at some point but I have no idea how to do that yet. Here's an example of some Powershell that sends a message to the endpoint. $ClientSecret = 'RemovedForObviousReasons' $body = @{ LogMessage = "This is a log message saved by Darragh on Monday"; Exception = "This is an exception. Usually full of really long and hard to read chunks of text. " StackTrace = "You thought the exception had a lot of text. Well, wait until you see the stuff flung out by the stack trace!" InnerException = "More information that should help with debugging the problem even before you get to the application. " CustomData = "Some notes that you might want to write when you are sending the error to be stored." ClientSecret = $ClientSecret Priority = 1 # 1=High, 2=Medium,3=Low LogType = 1 # 1=Error, 2=Warning, 3=Information LogSource = 2 # 1=OS, 2=Application, 3=Network, 4=Appliance, 5=User, 6=Server ApplicationName = "DCUDashboard" EnvironmentName = "Staging" } | ConvertTo-Json Invoke-RestMethod -Uri "https://logapi.itmanagement.systems/api/client/v1/log/add" -Method 'Post' -Body $body -ContentType 'application/json' Regards Darragh Ó Héiligh Performing, Promoting and Sharing traditional Irish music Performance: www.darraghpipes.ie<http://www.darraghpipes.ie> Music at the Gate: www.musicatthegate.ie<http://www.musicatthegate.ie> Ceol FM: www.ceol.fm<http://www.ceol.fm> Tel: 00353(0)877670464 Email: darragh(a)ceol.fm

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Log and monitoring help please?
by Zee 11 Oct '20

11 Oct '20

Hi all, Not so sure my first message made it to the list, I apologize for a second message. I hopefully might find myself doing more sys administration tasks, one of which is to ensure that servers are performing optimally, as well as looking at system/application logs when it comes to troubleshooting. I'd like to know how have you gone about this in an accessible way please? I remember trying to look at event viewer logs with JFW and that the MMC console kept crashing or that jaws was really sluggish in the console? Are their alternative apps when it comes to log analysis from an accessibility standpoint? How about graphs regarding CPU/Memory/Disk performance? I apologize for the many questions, Your help would really be appreciated. Kind Regards

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vmware workstation for linux
by mattias jonsson 10 Oct '20

10 Oct '20

are it not designed to work without graphical environments? i search for a virtual machine environment

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Proxmox (was RE: Re: vmware workstation for linux)
by Andrew Hodgson 10 Oct '20

10 Oct '20

Hi, Has anyone tried Proxmox on a dedicated server? Right now I use my Synology NAS for running a Linux and a Windows VM, using the OCR function if I need to get a screen capture. Audio redirection won't run like it does on VmWare workstation of course but just putting it out there. Andrew. -----Original Message----- From: mattias jonsson <mj(a)mjw.se> Sent: 10 October 2020 16:31 To: jheim(a)math.wisc.edu; Mailing list for blind system administrators <blind-sysadmins(a)lists.hodgsonfamily.org> Subject: [Blind-sysadmins] Re: vmware workstation for linux John Lets say you use virtualbox on a server e.g a dedicated server how do you install the guest? Skickades från E-post<https://go.microsoft.com/fwlink/?LinkId=550986> för Windows 10 Från: John G Heim<mailto:jheim@math.wisc.edu> Skickat: den 10 oktober 2020 17:04 Till: Mailing list for blind system administrators<mailto:blind-sysadmins@lists.hodgsonfamily.org>; mattias jonsson<mailto:mj@mjw.se> Ämne: Re: [Blind-sysadmins] vmware workstation for linux I use VirtualBox for linux. As far as I know, everything you can do in the graphical interface can also be done at the command line. So it is very accessible. Here's a tip about running a virtual machine in Linux: You can take a screen capture and then run an OCR program on it to read the screen even if sound isn't working. I think almost all virtual environments have screen cap functions. In VirtualBox you get a png image of the screen. I have found that gocr works much better than tesseract for recognizing the text in those screen caps. On 10/10/20 6:01 AM, mattias jonsson wrote: > are it not designed to work without graphical environments? i search for a virtual machine environment > _______________________________________________ > Blind-sysadmins mailing list -- blind-sysadmins(a)lists.hodgsonfamily.org > To unsubscribe send an email to blind-sysadmins-leave(a)lists.hodgsonfamily.org > _______________________________________________ Blind-sysadmins mailing list -- blind-sysadmins(a)lists.hodgsonfamily.org To unsubscribe send an email to blind-sysadmins-leave(a)lists.hodgsonfamily.org

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