Книги автора: Linux Network Administrator Guide, Second Edition
/ Книги автора: Linux Network Administrator Guide, Second Edition
Книга: Linux Network Administrator Guide, Second Edition
sendsys, version, and senduuname
sendsys, version, and senduuname
Finally, there are three messages that can be used to find out about the network's topology. These are sendsys, version, and senduuname. They cause C News to return the sys file to the sender, as well as a software version string and the output of uuname, respectively. C News is very laconic about version messages; it returns a simple, unadorned C.
Again, you should never issue such a message unless you have made sure that it cannot leave your (regional) network. Replies to sendsys messages can quickly bring down a UUCP network.[131]
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- Appendix A. Detailed explanations of special commands
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- Appendix E. Other resources and links