The background of my question is a set of test cases for my Linux-kernel Namespaces discovery Go package lxkns where I create a new child user namespace as well as a new child PID namespace inside a test container. I then need to remount /proc, otherwise I would see the wrong process information and cannot lo…
Tag: linux
How to install new relic on amazon linux
I have have unzipped newrelic files onto amazon linux and have both the installer.sh and config_defaults.sh I have the license key in the parameter store which I am able to call I install newrelic with the following command Where APPIKEY comes from the parameter store. However when I do sudo systemctl start n…
Swift – Can’t import packages
I have been trying out Swift on Ubuntu 20.10 and am having trouble importing packages. Swift is installed properly. I am always getting error: no such module, no matter which package I try. Here is my Package.swift (Embassy as an example): main.swift(under Sources/test) Answer In your Package.swift file you a…
Any idea how i can use timeout command with condition in linux and shell script
aim working on some shell script , i would like to check the following command df -h if timeout more than 60 second then echo “error ” else pass. so if this command will not responding for 1 minute then I will receive and error message , otherwise it will pass , any creative idea will be high apri…
How to configure systemd *.service using XML file configuration
I’m making a cross-platform background process. For Windows, I have a XML configuration file, which has a service name, load type etc. On windows, program during execution just parses this file and creates the service, easy. Linux, on other hand, has this *.service config file, which doesn’t allow…
Escaping Backslashes and Double Quotes in zsh Alias
I am trying to create an alias that should turn into the following command: It’s straightforward to just do on bash, but on zsh, the command turns into I can’t get the ” or the to escape. Answer It looks like you’re treating the first and last double-quotes as ‘surrounding’…
Why do system calls use a different stack?
Here is a question about the details happening during system call. However, one thing surprises me that the TSS maintains different stacks for different priviliges. That is, codes running in user mode and system mode are using different stack context. Since system call is actually a function call, why couldn&…
Sudoers.d file is not picking up in SLES SP5
I was working with some Linux service file and in one scenario I need to invoke systemctl command as a different user say sar user. So I have wrote one sudoers file(/etc/sudoers.d) and added the following code and I am invoking the command using sudo prefix its working for the most of the Linux version but in…
Azure BotFrameworkAdapter Error 400 missing parameter type
I’ve deploy my node.js server into Azure by new AppService linux. It correctly start, because if I call one http get it return the correct data. But when I try to call the post url that make a: it return I’ve already check if the bot have the correct appId and pwd, and it’s are ok. This is m…
unzip a list of archives
I need to Unzipped a list of zip archives. These archives are not empty, in each one there are a lot of file. In my directory I have a lot of file zip archive and all have the the name in the same format: batch-download-ccd-1610959358275.zip but change only the numeric part. I can extract each archive with un…