I am running Cygwin64 on two Win10 machines, one Home and one Pro. My software uses tftpd to receive a CSV from a network peer. tftpd is run from init (package sysvinit) with this line:
td:2345:respawn:/usr/sbin/tftpd -vvvvv -L -c -p -u Larry -U 000 -s /tmp
There is no xinetd running, no xinetd or tftp configuration file that I know of. On the Win10 Home system, which is my development system, this works. On the Win10 Pro system, it fails. The client times out. There is no entry in /var/log/messages (syslog-ng). Windows Application Log says "Cannot drop privileges: operation not permitted"
When I stop init and run that command line in a shell, it works and clients can transfer files in. But my system needs the respawn management of init. The pattern was set 12 years ago with Cygwin32 on Win7. My customer is now updating the PC and we have this glitch. If I were developing now, I would put the function on a raspi, but this is just a PC change.
Can anyone recommend a configuration to get the execution of tftpd under init under cygwin under Win10 Pro closer to that of the same command line in a user shell?
Edit 1: I also tried suid. tftpd.exe is owned by the user account, not SYSTEM or whatever cygwin has for root. Suid does not set permissions in a way that solves the problem.
Edit 2: adding cygdrop to the inittab line does not help.
Guess this one will be another tumbleweed. I found no good answers in 3 days of grinding. The problem seems to involve domain vs. local users in Windows, and how Cygwin interacts with the Windows user database, whatever that is. I ended up running the tftp server in an infinite-looping batch file that starts at user login, but is vulnerable to somebody killing the top level shell. Along the way, I recompiled tftpd-hpa for Cygwin and commented out the user ID change - that worked on my PC but not the customer's. If they have problems with the solution I may just retarget to raspi.
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I have installed Anaconda under Windows and Ubuntu under WSL. I have not used this Ubuntu installation for a long time. When I tried to run Ubuntu now, I saw the following:
That is, WSL starts a Jupyter Notebook server, which I have to kill by hitting Ctrl-C to get the Ubuntu prompt. What could be causing this behavior?
There are several ways for something to "autostart" when running WSL:
First, you (or an application) may have modified your startup scripts to start the Jupyter Notebook server. To see if this is the case, try starting WSL from PowerShell by running:
wsl -e bash --noprofile --norc
This will run bash without the startup scripts. If this brings you to the prompt without running the notebook sesrver, then the problem is in your ~/.bashrc or ~/.bash_profile (assuming bash is your default shell).
Given the symptoms you are seeing, this is the most likely cause. If that's the case, look in those files to see if you can find the line that is starting the server, and comment it out.
Second, and related to the first, do you recall trying to enable Systemd at any point using something like Genie or WSL2Hacks? If so, then I believe they modify your start scripts to run Systemd, which can be used to start other services. However, I would expect those Systemd-executed services to start daemonized, in the background, and not interrupt your shell's startup.
Under Windows 11, services can also be autostarted via /etc/wsl.conf, but again, they would be started by the root user in this case, and in the background. I can't think of a non-pathological way that this could be used to interrupt the user's startup shell experience.
I'm trying to get an electron forge app running on my Windows 10 machine via Linux on windows (using the new built-in windows bash functionality).
When running electron-forge start I am getting back the error message:
[1484:1126/222326.466455:FATAL:setuid_sandbox_host.cc(157)] The SUID sandbox helper binary was found, but is not configured correctly. Rather than run without sandboxing I'm aborting now. You need to make sure that /mnt/c/.../node_modules/electron/dist/chrome-sandbox is owned by root and has mode 4755.
From some searching, this thread on the electron Github makes it pretty clear that this is somewhat by design and the way to get around it is to run chmod as a root user post-installing all of the dependencies.
I attempted to do this and the command looked like it had worked (no error on running the chmod to 4755), but that didn't fix running electron-forge start - I still got the same error message. I looked into that a bit and it seems that this has to do with what files the linux subsystem are allowed to control permissions for per this Microsoft thread.
Is there some other trick to getting electron forge to work with bash on Windows?
I found that running the electron-forge init from Windows powershell into a native Windows directory allowed me to subsequently use npm start in my-app (for example) in WSL. So ultimately what I ran was
powershell npx create-electron-app my-app
(I have alias powershell="/mnt/c/windows/system32/WindowsPowerShell/v1.0/powershell.exe" in my .bashrc file)
I've been searching high and low for this one, figuring it to be a common noob problem, but nothing. I saw an oblique reference somewhere that xampp's shell won't accept ctrl-c to close an operation but I'd like to confirm.
As it is, I'm running Xampp on a win7 machine and it's set up with the default apache mysql combo. Which is all fine. Except that the command line stops receiving commands once I start a server. So if I want to run another command I've gotta exit the xampp command line and restart it.
Is there a way to abort shell scripts in the xampp shell or is it just a product of the environment it's running in?
Ok, I'm going to consider this solved.
While Xampp locks up once you start a server instance. It's possible to run a server directly through the windows normal command line Start->Run->cmd, while doing other xampp stuff in the xampp shell.
I'm gonna to use vagrant on my windows desktop to develop Laravel project. I have followed all the steps to do that. But it has been failed to create homestead.yaml using bash init.sh command.
Below is the error :
Fakhreddin#Lenovo-PC3 /cygdrive/d/laravel-vagrant/homestead
$ bash init.sh
cp: unwritable ‘/home/Fakhreddin/.homestead/Homestead.yaml’ (mode 0500, r-x------); try anyway?
I'm using Cygwin for simulating Unix terminal in the Windows.
(Copy of the comment I wrote above)
Never used Cygwin in my life, but what I would try is to run it as Administrator and re-try.
Otherwise, you may want to consider changing console client. For example, if you install Git, you should be able to use Unix commands via standard Windows console.
I would seriously point the fault at Cygwin, or its settings. I am a member of a team in which all of us run Homestead on Windows 7, with no problems at all. The difference is, we use native Windows command line.
I fondly remember working with WinSCP and using the fully automated local-to-remote syncing functionality, where the app would monitor a directory hierarchy and send changes to the remote server as they happened.
Is there an app available on OSX that accomplishes the same thing? I haven't really been able to find anything. When I do find something promising, it always turns out to be a traditional syncing app, where you need to initiate the sync command manually and it then scans the hierarchy to find changed files. That takes too long and isn't automated.
Been looking at the File System Events API, wondering if a small app could be pieced together with a small utility to trigger hierarchy changes and feed the changed directory to rsync or something.
Thanks for any leads!
There are two Mac-specific utilities you may be able to utilize to make your job easier:
Automator (link and link)
Folder Actions (link link and link)
Both tools have AppleScript as a common thread (which can be used to execute shell commands). You might be able to write a small AppleScript that is launched when a folder changes to call rsync and perform the service you require.
Well, I had the same kind of problem and it is possible using these together: rsync, SSH Passwordless Login, Watchdog (a Python sync utility) and Terminal Notifier (an OS X notification utility made with Ruby. Not needed, but helps to know when the sync has finished).
I created the key to Passwordless Login using this tutorial from Dreamhost wiki: http://cl.ly/MIw5
1.1. When you finish, test if everything is ok… if you can't Passwordless Login, maybe you have to try afp mount. Dreamhost (where my site is) does not allow afp mount, but allows Passwordless Login. In terminal, type:
ssh username#host.com
You should login without passwords being asked :P
I installed the Terminal Notifier from the Github page: http://cl.ly/MJ5x
2.1. I used the Gem installer command. In Terminal, type:
gem install terminal-notifier
2.3. Test if the notification works.In Terminal, type:
terminal-notifier -message "Starting sync"
Create a sh script to test the rsync + notification. Save it anywhere you like, with the name you like. In this example, I'll call it ~/Scripts/sync.sh I used the ".sh extension, but I don't know if its needed.
#!/bin/bash
terminal-notifier -message "Starting sync"
rsync -azP ~/Sites/folder/ user#host.com:site_folder/
terminal-notifier -message "Sync has finished"
3.1. Remember to give execution permission to this sh script. In Terminal, type:
sudo chmod 777 ~/Scripts/sync.sh
3.2. Run the script and verify if the messages are displayed correctly and the rsync actually sync your local folder with the remote folder.
Finally, I downloaded and installed Watchdog from the Github page: http://cl.ly/MJfb
4.1. First, I installed the libyaml dependency using Brew (there are lot's of help how to install Brew - like an "aptitude" for OS X). In Terminal, type:
brew install libyaml
4.2. Then, I used the "easy_install command". Go the folder of Watchdog, and type in Terminal:
easy_install watchdog
Now, everything is installed! Go the folder you want to be synced, change this code to your needs, and type in Terminal:
watchmedo shell-command
--patterns="*.php;*.txt;*.js;*.css" \
--recursive \
--command='~/Scripts/Sync.sh' \
.
It has to be EXACTLY this way, with the slashes and line breaks, so you'll have to copy these lines to a text editor, change the script, paste in terminal and press return.
I tried without the line breaks, and it doesn't work!
In my Mac, I always get an error, but it doesn't seem to affect anything:
/Library/Python/2.7/site-packages/argh-0.22.0-py2.7.egg/argh/completion.py:84: UserWarning: Bash completion not available. Install argcomplete.
Now, made some changes in a file inside the folder, and watch the magic!
I believe transmit does this.