In most cases, a branch office uses a static outside IP address to connects to a main office by configuring a site-to-site IPsec VPN between two Cisco ASA firewalls with static IP address on both end, But what if one of the remote ASA firewalls has a dynamic IP address?
DHCP server on a Cisco router or switch.
DHCP is an application layer protocol used to distribute network configuration parameters, such as IP addresses, subnet masks, default gateways, etc.. to devices on the network. a DHCP client send request to a DHCP server. A DHCP server is assigns network parameters (IP address) to the DHCP client from configured IP addresses pool.
Cisco router and switches can be configured as a DHCP server, In this post I will walks you through the configuration process.
The Site-to-Site IPsec VPNs were used to connect two distant LANs together over the Internet. Private addresses were used on the LAN that means without tunneling the two LANs would be unable to communicate with each other.
Firewall Logging is Useful to verify if newly added firewall rules are working or not, to identify malicious activity, and to determine if the firewall is dropping packet which causes application failures.
By default, the Firewall log is disabled.
How to create a Vagrant Box from Existing VM
Vagrant is a tool for building and managing virtual machine environments and focus on automation, Vagrant lowers environment setup time,
Vagrant helps you create virtual machines on-the-fly by a set of reusable configuration files.
Vagrant provides easy to configure, reproducible, and portable work environments built on top of industry-standard technology utilities for managing the lifecycle of machines
To achieve its magic, Vagrant stands on the shoulders of giants. Machines are provisioned on top of VirtualBox, VMware, AWS, Hyper-v or any other provider. Then, industry-standard provisioning tools such as shell scripts, Chef, or Puppet, can automatically install and configure software on the virtual machine.
Sybase database create on a device, which means you have to create a device first with a proper size before creating a database.
In my previous post I navigate through the steps of creating Sybase ASE device, database, dump and load using command. In this post I will guide you through the steps using Sybase Central ‘GUI‘ instead of CLI
I will cover: