How to Fix the Go \'fork/exec permission denied\' Error on CentOS 6.3?

Troubleshooting Go "fork/exec permission denied" Error on CentOS 6.3

When executing a Go script on a CentOS 6.3 server, you might encounter the "fork/exec permission denied" error. This issue arises specifically when trying to run the script.

To resolve this problem, various solutions have been suggested:

1. Ensure Correct Permissions:

Verify that the script has the appropriate permissions. Run the following commands as the user running the script to grant execute permissions:

chmod +x hello.go
sudo chown username hello.go

2. Set Temporary Directory:

In some cases, the issue can be attributed to an incorrect temporary directory. Set the TMPDIR environment variable to a writable directory:

export TMPDIR=~/tmp/

Then, try running the script again.

3. Disable SELinux:

SELinux can sometimes interfere with the execution of Go scripts. Temporarily disable it by editing the /etc/selinux/config file and changing the SELINUX parameter to disabled. Afterward, reboot the server and attempt to run the script.

4. Update Go Version:

Make sure you are using the latest version of Go. Update it using the following commands:

sudo yum update
sudo yum install golang

5. Check File Descriptors:

A high number of open file descriptors can also trigger this error. To check the current limit, run the following command:

ulimit -n

If the limit is low, increase it using the ulimit -n command and try executing the script again.

6. Debug the Script:

If none of the above solutions resolve the issue, try adding logging statements to your script to determine where the error is occurring. This can help identify any potential problems with the script itself.

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