5/7/2023 0 Comments What is jamf cloud![]() Some client applications implement “certificate pinning”. If a client tries to bypass the proxy, the traffic will be blocked by a firewall unless the source/destination combination has been granted special permission to do an end-run around the proxy.Īs the world goes increasingly mobile, newer technologies like ZTNA will replace more traditional approaches like VPN and outbound proxies. Explicit proxies require that clients have the proxy url and port (or the path to a PAC file) entered into the client’s network settings. ![]() In “Transparent Proxy” setups, network routing makes sure traffic goes through the proxy without the clients even knowing about it. The proxy can log and/or block traffic when it detects a problem. When decrypting proxies are used, the proxy can scan the contents of network messages to look for security problems, like known malware patterns or to implement data loss protection. ![]() Other proxies require that a trust certificate be installed on network clients so the proxy can decrypt server responses and then re-encrypt the content before passing it along to the client. In some cases, the proxy does not decrypt the traffic but it can still log information about the traffic’s source/destination and other characteristics that may be useful for spotting security problems before they occur or for forensics after the fact. Usually an outbound proxy sits between an enterprise network and the internet, but they could be positioned between subnets, or even intercept every network connection the clients initiate, regardless of the destination. Some enterprise networks (and sometimes whole countries, but that’s a topic for another blog…) implement an outbound/client proxy through which all traffic exiting a network must flow.
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