How to find all hard links in a directory on Linux

Posted on in Categories , , , , , , , , , last updated February 25, 2017

I have a file named /etc/passwd i and I would like to find all hard links to this file in a directory. How do I find out all other hard links to the /etc/passwd in /backups/ directory? How can find all hard links to a given file using Linux or Unix command line option?

How to set rsync speed limit from eating all bandwidth with –bwlimit option

Posted on in Categories , , , , , , , , last updated February 25, 2017

The rsync command is eating all my bandwidth from a backup script and generating tons of I/O. How do I set a limit for file transfer speed of rsync command on Linux or Unix-like system? How can I keep my rsync script from using all of my bandwidth?

How to create a new config file in Ansible playbook

Posted on in Categories , , , , , , , last updated February 19, 2017

I wanted to create a file named /etc/apt/apt.conf.d/1000-force-ipv4-transport with the value set to ‘Acquire::ForceIPv4 true;’ on 20 cloud servers hosted in AWS. I already setup Ansible playbook to automate stuff. How do I create a new file using Ansible playbook? Is it possible to create a complex file with many lines of text (say squid.conf) using Ansible IT automation tool?

PHP Fatal error: Call to undefined function curl_init() in /home/httpd/a/includes/functions.php(1)

Posted on in Categories , , , , , , , , , , last updated February 12, 2017

I setup a LEMP (Linux, Nginx,MySQL, PHP ) stack. But, getting the following error in /var/log/nginx/error.log file:
    PHP Fatal error: Call to undefined function curl_init() in /home/httpd/a/includes/functions.php(1)
How do I solve this problem on Linux server?