ow do I allow incoming SSH connections from a specific IP address or subnet on a Ubuntu or Debian Linux server using ufw?
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?
host my blog in cloud server, and I set up ssh to manage my Ubuntu Linux 16.04 LTS server. However, I noticed lots of break in and brute-force attacks on my ssh server? How can I stop hacking attempts into my system?
am a new Ubuntu Linux sysadmin. How do I get a list of all installed packages on server1 and install those on server2? How to list all installed packages using apt-get command on Ubuntu or Debian server?
switched from Apache to Nginx web server. How do I configure permalinks under WordPress blog?
I am using UFW to protect my network. How do I forward TCP HTTP port # 80 and 443 to an internal server hosted at 192.168.1.100:80 and 192.168.1.100:443 using UFW on Ubuntu Linux server?
am getting an error that read as “The proxy server is refusing connections.” I am using Squid 3 with Ubuntu Linux 16.04 LTS server and how can I find out why my squid proxy server died unexpectedly?