I’m trying to access my remote mysql server via my local phpmyadmin setup(from xampp installation). Here is my config.inc.php file for phpmyadmin: I get this error: Answer the remote mysql server that you want to connect has to be configured to allow or take request other than localhost. Check firewall …
Tag: linux
Open MPI error when setting up a cluster with more than 3 hosts
We cannot run a program in a Open MPI cluster with more than 3 machines. If we run: it works. If we run: We get the following error: Despite of the fact that it looks like a name resolution error, it is not, because slave5 works on the first command. We’ve seen other people reporting the same error with…
Print only a part of the result of a command
I am trying to obtain the status of a httpd service with Centos 7. I want to know if i can print only the value of Active, that in this example is inactive (dead) This is the command that i am using: This is the result of that command. This is the output that i a want: inactive (dead). Answer
Receive (recv) full request (e.g. curl HTTP)
How should this be done? I want to receive a (rather long) HTTP request and cannot get this to work. The problem: Without flags, recv does not read the whole message. I guess this is normal behavior. From what I understand using the MSG_WAITALL flag causes it to block until everything is received. However, in…
How to force yum to update only to exact minor OS version
I have a default AWS image with the version CentOS 6.7. If I run I am getting CentOS 6.9. Is there any way to force yum to update only to version 6.8 and not 6.9? Answer Yes it is possible. Follow these steps: Find a mirror that is closer to you using: http://mirrorlist.centos.org/?release=6&arch=x86_64&a…
What does it mean by using ‘source ‘ command in linux?
After creating virtual environment why do we need to fire source command ? What is the use of source command in general in linux ? Answer source : it will read file and execute cmd in file, in current shell environment. usually it’s used to add some environment vars. for example.
Sort command is printing in unordered sequence in linux terminal
I have one file named temp following are the data in the file When i am execute sort temp in the terminal i am getting the answer as But my expected answer is Can anyone help me in this? Answer See man sort: Thus, use
System call that shows processes filtered by their status
I am making a system call that loops through every process with a certain status (passed to the syscall as a parameter) and show their Name, PID, UID and the name of their children. This is what I have so far: This prints all of the system’s processes and their children, completely ignoring the conditio…
Bash passing arguments to a command
I need to execute in Bash the following command: The thing is that in Linux the ‘;’ character is indicator of end of the command and I also need to use environment variables. How can I do this? How can I achieve this? Answer The answer from @ilkkachu is on the money, as is chepner’s comment …
How do I force install an application in Linux with input option I?
I am trying install an application in single command. The application gives the following options Actions: <I> start installation to hard disk <H> help <Q> quit My option is <I>. So, how do I enter this <I> in single command? sudo ./install-tl this is my command Answer Since texl…