Checkpoint Monitord Process Consumes Excess Memory
During a regular review firewall mem and cpu usage, I found some of Checkpoint UTM272 R77.10 gateways are using lots memory and ssh / snmp access seems slow sometimes. With…
Update to Windows 10 Immediately Without Wait Validating from Microsoft
One of my windows 7 laptop is still waiting Microsoft to validate my computer’s specific but my another one has been notified and successfully automatically updated. After a couple of…
Checkpoint Gateway Lost SIC After Jumbo Hotfix Installed
Our Checkpoint Products are stilling sitting at R77.10. Checkpoint has release Jumbo Hotfix Accumulator for R77.10 (gypsy_hf_base_021). The installation procedures from Command Line is quite simple: Transfer the Jumbo Hotfix…
Layer 2 / Layer 3 IP Packets Switching Procedures
Layer 2 Packets Switching Procedures The packet will be sent in the same vlan. 1. A sends ARP -who is 10.1.1.3?Destination MAC address : ALL FF’sSource MAC address: A1 2.…
Policy Based IPSec VPN Configuration Between SRX Firewalls
Juniper SRX support both Route-based and Policy-based VPN, which can be used in different scenarios based on your environments and requirements. Difference between them (KB15745) With policy-based VPN tunnels, a…
Configure SRX 240 cluster Step by Step
1. Understanding SRX240 Default Configuration The following default configurations apply to SRX240 factory default settings
Using Cisco Mini USB Console Cable to Configure Cisco Switches and Routers
Cisco Device Mini USB Port Cisco has added mini usb port into their products for many years. The key to use this port is to get a right cable. At…
Upgrade Cisco 3560X IOS Take 30+ Minutes
When working on IOS update for one standalone Cisco 3560x to meet our environment requirement, I was so surprising the total time for Cisco 3560x taking new IOS image, which…
Checkpoint NAT Concepts and Server Side NAT Explanation
Checkpoint have four main NAT concepts we will need to know their difference when implement a NAT rule:a. Automatically NAT vs Manual NATb. Static NAT vs Dynamic NAT (Hide)c. Source…
Checkpoint Standby Cluster Member Interface Not Reachable
It was a curious test that I tried to ping other interfaces on Checkpoint 4200 Cluster’s active and passive firewalls. The result was interesting, I were able to ping both…
Pulse Secure (formerly Juniper Pulse) – UAC Configuration Summary
Juniper Networks® Network Control and Access Solution – Unified Access Control (UAC) including at Junos Pule product line as a whole packge has been sold to Siris Capital and renamed…
Cisco ASAv 9.4.1 and ASDM 7.4.1 in Workstation / ESXi (2)
In my previous post “Cisco ASAv 9.4.1 and ASDM 7.4.1 in Workstation / ESXi (1)“, I tested the importing both OVA and VMDK file into Workstation and ESXi, but both…