How to Open Port in Amazon EC2 instance
By default Amazon EC2 only allow port 22 (SSH) on Linux servers and port 3389 (RDP) on Windows Instances. All other ports…
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How to reset WordPress Password using wpcli
If you lost your WordPress user password, you can use forget password link on the WordPress login screen to reset the password.…
schema
Schema validator https://validator.schema.org/ Google Rich test https://search.google.com/test/rich-results
rsyslog Unsafe symlinks encountered in /var/log, refusing
When updating packages on an Ubuntu server, I got the error “Unsafe symlinks encountered in /var/log, refusing.”. root@ip-172-31-45-33:/var# apt upgrade -y Reading…
How to Split large CSV file into smaller files
To split a large CSV file into smaller parts, you can use the split command tail -n +2 access_log.csv | split -l…
CentOS Error checking for OpenSSL library … not found
When installing Nginx from source on a CentOS 7 server, I got the following error checking for OpenSSL library … not found…
Nginx ModSecurity Not able to open file
On an Nginx server after updating Nginx and ModSecurity, I got the following error [root@localhost ~]# nginx -t nginx: [emerg] “modsecurity_rules_file” directive…
Linux Disk Quota
XFS quota not working RAID 1 To check disk quota for a Linux user, run quota -svu USERNAME_HERE Sample [root@shaft ~]# quota…
DDoS Protection Service
DDoS Protection https://sucuri.net/website-firewall/ http://cloudflare.com https://ddos-guard.net – used by rt.com https://path.net/ DDoS Protected Hosting https://www.hyperfilter.com – DDoS protected hosting https://koddos.net Back to DDoS
How to find Operating System of a remote computer using nmap?
Nmap is a network exploration and security auditing tool. It can be used to identify hosts and services on a network, as…
How to prevent Symlink Attack on Cpanel Server
Symlink attack exploits the way Linux operating systems handle symbolic links (symlinks). A symlink is a pointer to another file or directory…
How to export Amazon Route 53 DNS Zone
To export DNS Records for a domain, you can use AWS CLI. First, you need to make an Access key to use…