Understanding IPSEC

IPSec is a set of protocols and standards developed by the Internet Engineering Task Force (IETF) to support secure communication at the IP layer. IPSEC allows for two types of VPN configuration. Remote-Access VPN: These let individual users, such as telecommuters, connect to secured networks using VPN client connection software.…

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Generate CSR on Cisco ACE

To generate the CSR required for a SSL certificate, follow the instructions below: Logon to Primary ACE conf t no crypto  csr-params www.domain.com crypto csr-params www.domain.com country GB state London organization-name Organisation Ltd common-name www.domain.com serial-number 1001 email user@domain.com crypto generate key 2048 2012-www.domain.com.key crypto generate csr www.domain.com 2012-www.domain.com.key Ensure…

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Using Ubuntu UFW

UFW is the default firewall configuration tool for Ubuntu.  UFW provides a user friendly way to create an IPv4 or IPv6 host-based firewall. By default UFW is disabled. Allow Port/Protocol  sudo ufw allow <port>/<optional: protocol> Example: To allow incoming tcp and udp packet on port 53 sudo ufw allow 53 Example: To allow…

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