How does Microsoft address security issues in a TN3270 environment?
With Microsoft Host Integration Server 2000, customers can get the same functionality as Secure Sockets Layer(SSL) provides, in addition to the benefits of native 3270 versus TN3270 emulation. Simply put, TN3270 is not the only way to get 3270 emulation over a TCP/IP network. While TN3270E works sufficiently well with most host applications, it is not the native 3270 data stream that customers are used to. There’s no pacing on the session, causing the emulators to potentially misbehave when there are unsolicited host messages (such as a broadcast message by the host administrator). TN3270E does not handle host graphics and is still known to have problems with 3287 printing. Other problems include unreliable handling of “Attn” and “SysReq” keys on the emulator and Structured fields as well as extended attributes causing problems with some TN3720 emulators. Native 3270 emulators have none of the above problems.
