Before thinking of VPN, some lineaments that you must have to think like user count, bandwidth amount, security, and topology and of course cost. There are mostly three types of VPN accessible in the technology market like IPSec (internet protocol security), PPTP (point to point tunneling protocol), L2TP (Layer 2 tunneling protocol) and SSL VPN.

Apr 04, 2018 How Point-to-Point Tunneling Protocol (PPTP) Works - The Dec 03, 2018 VPN vs Leased Line - Comparing The Security | Leased Lines PPTP has security weaknesses - The most widely used VPN technology (Point-to-Point-Tunneling Protocol) has known security weaknesses. SSL VPN 'man in the middle attacks' - SSL VPNs are popular, but if poorly configured they can be vulnerable to 'man-in-the-middle' attacks, where the users securely connect to the attacker, who then connects to 10 Common IT Security Risks in the Workplace

Application-level gateway (also known as ALG, application layer gateway, application gateway, application proxy, or application-level proxy) is a security component that augments a firewall or NAT employed in a computer network.It allows customized NAT traversal filters to be plugged into the gateway to support address and port translation for certain application layer "control/data" protocols

Application-level gateway (also known as ALG, application layer gateway, application gateway, application proxy, or application-level proxy) is a security component that augments a firewall or NAT employed in a computer network. Not to our knowledge (as of 2004.12.08). The current OpenVPN security model matured by version 1.1.0, which was released in 4/2002. Since that time, there have been no confirmed reports on the OpenVPN lists or other security-related forums claiming any security vulnerabilities due to bugs in the software.

9. Go to the Security tab and make sure the type of VPN is listed as PPTP (Point to Point Tunneling Protocol). Also, the data encryption option should be “Optional Encryption (Connect even if no encryption)” and the option for “Challenge Handshake Authentication Protocol (CHAP)” should be selected for “Allow these protocols”. 10.

Oct 20, 2016 · Alternatives to PPTP. Other VPN protocols are either not as easy to set up as PPTP or do not come pre-installed on popular operating systems. Even so, the added security makes a few extra steps worth the trouble. OpenVPN. OpenVPN is our recommended VPN protocol. The only problem is that it isn’t supported by default on most devices. Sep 11, 2019 · In 1998, security analyst Bruce Schneier published an important paper on PPTP, and it made grisly reading for users. Or at least it should have. Or at least it should have. According to Schneier, the protocol’s weakest point was its Challenge/Response Authentication Protocol (CHAP), closely followed by its RC4-based MPPE encryption.