This is my note about ASA IPsec Site-to-site behaviour that I found. The VPN tunnel is down when there is no traffic between the two site (A to B), even when you have configure it.
The solution is simple, Continue reading “Note: Cisco ASA IPSec Tunnel Behaviour”
Here is my quick review of how to upgrade Ironport ESAs in a Cluster.
To upgrade, first we have to disconnect machines from cluster, upgrade them one by one, and then join them all together again in cluster.
I will assume that you know the basic operation of Ironport ESA via CLI. I will write only the major steps. Continue reading “How to Upgrade Ironport ESAs in a Cluster”
The title explains itself.
This is how to backup and restore configuration in migration or if you want to replace a new unit, or just wanna test a configuration. It’s simple.
Let’s begin 🙂 Continue reading “How to Backup and Restore Config in Fortigate Firewall”
It often happens after your restart, device is unstable, device replacement, or after an outage, the IPSec tunnel will stop working.
Do not panic, you can restart the VPN session.
To restart or reset the VPN session you can issue this command: Continue reading “How to Restart ASA Site-to-Site VPN Tunnel”
I have a case when I tried to upgrade the Ironport virtual Email Security Appliances (vESA) and then the appliance failed to locate the update server. It happened after migrating from physical appliance to virtual appliance.
The main cause of the problem is the virtual appliance use different update server than the physical unit, so we have to set it manually via console. It is easy 😉 so let’s begin!
Continue reading “How to Set Ironport vESA Update Server”
It is so easy to upgrade Ironport Security Management Appliance (SMA), both virtual and physical 🙂 Here’s how. Continue reading “How to Update Ironport SMA (Console)”
It is easy to Reset the Fortigate administrator password when you have physical access to the device, or if you can manage somehow to reboot the appliance from remote place, IYKWIM 😉 Here’s how. Continue reading “How To Reset Fortigate Firewall Administrator Password”