Sometimes people just have to provide their trusted workforce or primary contractors with remote accessibility to their network through a client VPN or virtual private network. Good for them, this can have tremendous positive impacts when it comes to allowing a collaboration surmounting geographical separation. You might also have explored that maintaining a secure network has gotten trickier than before. It’s because each and every unrestrained remote computer will potentially create yet another rout of entry into the hackers’ network. Here’re a few tips you could consider to secure your precious network as you ensure the boons of your internet VPN.
First things first, you need to utilize the most solid authentication method ever possible for internet VPN access. Things here will tend to depend a lot on the kind of network infrastructure you have, as well as on how you can check the VPN or the documentation of your operating system for determining your options. As for on instance, on the network that works with some Microsoft servers, among the most secured possible authentication will be offered by the EAP-TLS or Extensible Authentication Protocol-Transport Level Security used with typical smart cards. Needless to say, these call for a PKI or public key infrastructure and will incur the overhead due to encoding as well as distribution of smart cards in a secure way. Then again, on such networks, Ms Challenge Handshake Authentication Protocol Version 2, which is also known as MS-CHAP v2 along with EAP or Extensible Authentication Protocol can provide you with the second best authentication security. Besides these, PAP or Password Authentication Protocol, SPAP or Shiva Password Authentication Protocol along with CHAP or Challenge Handshake Authentication Protocol are regarded too feeble to be used.
Also consider using the most solid encryption method ever possible on internet VPN access. There are the networks working with typical Microsoft servers, just as we said earlier. They are Layer 2 Tunneling Protocol or L2TP working over IPsec or Internet Protocol security. Remember that PPTP or Point-to-Point Tunneling Protocol remains too vulnerable here to allow, unless the client passwords happen to be guaranteed for super strength. OpenVPN, which happens to be a SSL or Secure Socket Layer VPN, could easily be run alongside TLS-laden session authentication or Blowfish or even AES-256 encryption too. And same goes for SHA1 authentication on tunnel data.
You got to limit VPN accessibility to the ones who have a legitimate business reason. You should allow that even only when essential. The VPN connectivity, whether you understand or not, is ‘the’ door to your Local Area Network, and could solely be open if it is absolutely essential. You need to understand the fact that the remote employees must be discouraged about getting connected to the VPN service throughout the day for chatting, check mails or so on. Remote employees as well as contractors must also be fully discouraged about getting connected to your VPN to download typically needed files.