NMAP Security Scanner on Linux Rumi, August 21, 2015February 11, 2017 First of all, you should get the “nmap” package installed in your system. On CentOS yum install nmap On Debian apt-get install nmap On Ubuntu sudo apt-get install nmap NMAP Commands: sudo nmap -sS [IP address] or [website address] sudo nmap -O --osscan-guess [IP address] or [website address] sudo nmap -vv [IP address] or [website address] sudo nmap -sV [IP address] or [website address] nmap -sn 192.168.1.0/24 or nmap -sP 192.168.1.0/24 Zenmap – A GUI for Nmap All the above is good and you can dive deeper trying out various options and see what you can learn about a target, but for those that want a more user-friendly approach they should install the “zenmap” package that is a GUI tool for Nmap. Besides the fact that Zenmap offers convenient boxes to insert your target’s IP (or website address) and outputs results in a more eye-pleasing way and with proper highlighting, its main advantage is the fact that it offers pre-set Nmap commands that you can quickly select and run. Moreover, the software offers a test comparison tool, a topology plotter, and the ability to save scans for administrator review and evaluation. Scanning Network nmap -sP 192.168.2.1/24 Related Configurations (Linux) nmap
Install Munin-node on RHEL or CentOS 6 or Scientific Linux 6 October 25, 2013 rpm -Uvh http://ftp.uninett.no/linux/epel/6/x86_64/epel-release-6-8.noarch.rpm yum install perl-XML-SAX yum install munin-node And voila! Related Read More
Setup HAProxy Load Balancer for MariaDB Galera Cluster December 28, 2022December 28, 2022 If you check the above test scenario and try to create DBs on any of the nodes, you would see that the data would automatically sync between the nodes. Which means Availability is achieved. Now to achieve high availability we will use HaProxy as the loadbalancer. Set up another VM… Read More
Install a Sectigo Domain Validation SSL certificate in Zimbra December 16, 2021 We usually get the below four files from Sectigo in the certificate bundle. The file name may vary depending on the certificate type yourdomain.com.crt – main certificate AAACertificateServices.crt – Root Certificate USERTrustRSAAAACA.crt – Intermediate Certificate – 1 SectigoRSADomainValidationSecureServerCA.crt – Intermediate Certificate – 2 Step 1: We shall create two files as… Read More