Friday, February 15, 2019

Install Mac OSX AnyConnect Package on Cisco Router and on Mac Machine

Symptoms: 
One of my clients reported a Cisco AnyConnect issue. It only happened to his machine and later we found that is because he is using Mac machine. His credential works fine if he uses it at windows machine.

From following screenshot, obviously there is Mac AnyConnect package missing from vpn gateway.


Error Messages:
"VPN
The AnyConnect package on the secure gateway could not be located. You may be experiencing network connectivity issues. Please try connecting again.

Wednesday, February 6, 2019

PFsense Configuration with Topology and Screenshots

pfSense is an open source routing and firewall software that is based on the FreeBSD distribution. The basic features including:
pfSense Home Topology

  • Static/default/dynamic routing
  • Stateful firewall
  • Network Address Translation (NAT)
  • Virtual Private Networks (VPN)
  • Dynamic Host Configuration Protocol (DHCP)
  • Domain Name System (DNS)
  • Load balancing and so on. 

With many supported add-on packages, other advanced features including:
  • Snort (for Intrusion Detection and Prevention)
  • FreeSWITCH (Voice over IP)
  • Squid (Proxy)
  • SquidGuard (URL Filtering/HTTPS inspection)
  • Darkstat (Network Traffic Monitor)

Tuesday, February 5, 2019

Qualys Scanner Appliance and Qualys Guard Service Tips and Tricks

The Qualys Cloud Platform and its integrated apps can simplify security operations and lower the cost of compliance by delivering critical security intelligence on demand and automating the full spectrum of auditing, compliance and protection for IT systems and web applications. Qualys Scanner Appliance is an option with the Qualys Cloud Platform. With the Qualys Scanner Appliance, you can easily assess internal network devices, systems and web applications.  This post summarize some of my experience with Qualys Guard service from Qualys Scanner Appliance.

1. AssetView 
1.1 Dashboard

Saturday, February 2, 2019

Install ProxMox 5.3 into VMware Workstation 14

Proxmox VE is a complete open-source platform for all-inclusive enterprise virtualization that tightly integrates KVM hypervisor and LXC containers, software-defined storage and networking functionality on a single platform, and easily manages high availability clusters and disaster recovery tools with the built-in web management interface.

The enterprise-class features and the 100% software-based focus make Proxmox VE the perfect choice to virtualize your IT infrastructure, optimize existing resources, and increase efficiencies with minimal expense. You can easily virtualize even the most demanding Linux and Windows application workloads, and dynamically scale-out your computing and storage as your needs grow ensuring to stay adaptable for future growth of your data center. You can easily use Proxmox VE to control KVM and OpenVZ virtual machines and create a small computing cloud with it.

YouTube Video: Install ProxMox 5.3 into VMware Workstation

Friday, February 1, 2019

Kali Usage Tips and Tricks

Kali Linux is a Debian-based Linux distribution aimed at advanced Penetration Testing and Security Auditing. Kali contains several hundred tools which are geared towards various information security tasks, such as Penetration Testing, Security research, Computer Forensics and Reverse Engineering.

Download Kali: https://www.kali.org/downloads/

Basic Configuration Videos:


Running WordPress in the Docker of AWS EC2 Instance

Docker is a technology that allows you to build, run, test, and deploy distributed applications that are based on Linux containers.

Docker is available on many different operating systems, including most modern Linux distributions, like Ubuntu, and even Mac OSX and Windows.If you are using Amazon EC2 already, you can launch an instance and install Docker to get started.

Youtube Video:


Microsoft Office Tips and Tricks (Word, Excel, Visio, PowerPoint)


1. Word

1.1 Convert Texts into a Table:
 




Wednesday, January 30, 2019

IT Ops Knowledge Points and Skills Level




IT operations are the processes and services administered by an organization’s information technology department. As such, IT operations include administrative processes and support for hardware and software, for both internal and external clients.

IT OPS Knowledge Points:

Nosql Database Redis Mongodb
Web Servers Apache Nginx Tomcat
Network Monitoring Tools Nagios Zabbix Cacti MRTG
Proxy Servers Squid Nginx
Cache Servers Squid Varnish Redis Memcached
Log Monitoring Servers Awstats Logwatch Graphite SARG Webalizer Splunk Kafka Storm Scrible Logstach ELK
Load Balancing Servers Haproxy Lvs Nginx
Cluster Heartbeat Communication Keepalived Heartbeat
Mail Servers Sendmail Postfix
File Servers Vsftp
DNS servers Bind
Firewalls Iptables
File System DRBD ISCSI SAN NAS FastDFS Lustre Hadoop Mogilfs NFS
Rational DB Mysql Oracle
DHCP Servers DHCP
Auto Batch Installation Servers Kickstart Cobbler
Sniffing Software Wireshark Tcpdump Joy
Auto Operation management Software Puppet Ansible Chef Saltstack Func Fabric Pexpect CMDB
Virtualization / Cloud Comuting Kvm Xen Docker Openstacker
Security Failzban AIDE Portsentry IDS/IPS WAF Lynis Tripwire Nmap RKHunter Chkrootkit
Session Maintenance Screen Tmux
Pressure Testing AB Webbench Iozone Httperf Sysbench Iperf Speedtest_cli