VPN Lab between Cisco Router and Checkpoint Firewall
1. Checkpoint configuration a. Set up Checkpoint Gateway IPv4 address as the peer address showing in the cisco router. b. Create a new Interoperable Device for Cisco Router c. ISAKMP…
Resize Checkpoint Firewall’s Disk/Partition Space (Gaia and Splat Platform)
Checkpoint Firewall Appliances are using Logical Volume Manager (LVM) Sometimes, the logic volume do not have enough size to perform your operations. Checkpoint Expert Mode have some commands to modify…
Workaround for can not Edit Virtual Machine Settings in VMware vSphere ESXi 5.5
After upgraded ESXi to 5.5, some VMs got following screenshot error when tried to edit the configuration. “You cannot use the vSphere Client to edit the settings of virtual machines…
OpenWRT in Vmware as a light weight router and virtual host
OpenWrt is a Linux distribution for embedded devices and provides a fully writable filesystem with package management. Also for me, it is perfect for running OpenWRT as a small router…
FTP Active mode vs Passive Mode
Traffic flow for Active mode and Passive mode: 1. Active FTP : command : client >1023 -> server 21 data : client >1023 <- server 20Running ftp command from client…
Close Cisco IOS TCP Ports 23, 2002, 4002, 6002, and 9002 from Network Ports Scanning
Just found my Cisco 1921 has same problem on ports 2002, 4002, 6002 and 9002, as described on this post. Symptoms: Some Cisco Cisco Routers (1900/2900 Series) are answering to…
Tripwire Enterprise 8.3 Basic Configuration Steps
Tripwire Enterprise is a security configuration management suite whose Policy Management, Integrity Management, and Remediation Management capabilities stand-alone or work together in a comprehensive, tightly integrated SCM solution. Five Key…
Linux : find big file in the all directories
1. Juniper Firewall find . -type f -size +10000 -exec ls -lh {} ; Sample output: root@FW% find . -type f -size +10000 -exec ls -lh {} ; -rw-r–r– 1…
Cisco VPN LAB 3 : A Simple DMVPN Configuration Example
1. Topology a. Rack is from IOU v5. This lab will use seven routers to complete whole DMVPN configuration and test. b. network topology. It is drew from gliffy website…