Experiment with window size, packet length, and unprefixing to achieve the highest transfer rate. In this example the modem is a USR Courier. You can set up port "hunt groups", you can assign logical names to the VMS ports, which can refer to single LAT ports or entire hunt groups, and so on. You can even define "bidirectional" ports for both calling in and calling out, but these are difficult to troubleshoot when there are problems.
Start Kermit, tell it to "set host localhost" the TCP loopback name. In connect mode you can log back on to the same system see the cautions in Using C-Kermit about "C-Kermit in the Middle".
Now go back to the original Kermit session to transfer the files. If that works, you can try settings that give higher performance at your own risk. Once these have been set up, then if an incoming connection fails because of line problems, it should be possible to reconnect to the original session by redialling and logging in again. You should then get a prompt asking if you wish to connect to your disconnected session, allowing you to resume where you left off.
DAT also needs to be changed to set the appropriate bit to enable the disconnect processing by default on all terminals. Check the manual! Any attempt to execute such a command should result in C-Kermit issuing an error message. Should a user circumvent this, VMS will automatically terminate the user's process. DEC further states that they intend to modify VMS utilities to no longer prohibit spawning in a future release. Further, you should be aware that preventing users from getting to DCL only provides an illusion of security.
There are many ways of getting to DCL which are non-obvious. DOC for further information. Once you have it on your VMS system and decode it, you can use it to download a more current and appropriate version.
If you have obtained the executable VMS C-Kermit program encoded in printable "hex" format on magnetic tape or over a network, you can decode it back into a runnable. MAR program. EXE file with the same root name. MAR , compiles and runs on both platforms. The C-Kermit. The VAX versions will not run under pre If you have a VMS 4. COM procedure. HEX file for your environment.
It's a bit of a task to keep up with all the buyouts and renaming. Not every combination is necessarily available. In general, an. If that doesn't work, try the next earlier one, etc. EXE, e. There is no VMSINSTAL kit because it would have to include many megabytes of differently- configured executables to choose from, and many of system-configuration items discussed above are best done by the system manager manually, in privileged mode, after some thought and consideration.
Instead, install it as a foreign command. Identify the directory where you want to install the C-Kermit program. Copy the desired. EXE as a "foreign command". EXE or. KDD Sample dialing directory file. KSD Sample services directory.
KND Sample network directory. If the Kermit program is not installed as a "foreign command" as in 6 above, you can still RUN it, but you can't pass command-line arguments to it this way.
If your machine has MMJ asymmetrical RJ modular jack sockets like a VAXstation , you won't be able to make very good use of modems since these ports do not support modem signals. If no channel is assigned to the port within 30 seconds, or a port with an assigned channel is not allocated, the DTR signal is dropped.
OpenVMS has long been praised by its users for clustering and disaster-tolerant capabilities, security and overall reliability. It runs mission-critical systems and because of its consistent performance it tends to get little attention, except from a dedicated user community. One consultant, who didn't want to be identified for fear of jeopardizing existing relationships, said porting OpenVMS systems to another platform will entail much work. The OpenVMS operating system provides a lot of the capabilities that other operating systems either don't have, or don't do in a similar enough manner, said the consultant.
End-of-life decisions are likely to trigger push-back from users, consultants and anyone involved in support and operations. HP's decision to end support for the HP more than a decade ago caused quite a stir and prompted users to organize an effort to keep the system operational. De Dalto said he was shocked by HP's decision because he would have expected HP to continue to develop and move to the latest Itanium chips.
Patrick Thibodeau covers cloud computing and enterprise applications, outsourcing, government IT policies, data centers and IT workforce issues for Computerworld. His email address is pthibodeau computerworld. See more by Patrick Thibodeau on Computerworld. Here are the latest Insider stories.
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