timk@zaphod.ncsa.uiuc.edu (03/18/89)
/* Written 5:10 pm Mar 15, 1989 by raymond@io in comp.sys.mac */ /* ---------- "problem with NCSA telnet and flex i" ---------- */ We found that when flex cut in and blank the screen while the m/c is connected to other hosts through telnet, the connections will be lost, ie. the hosts will not reponse, afterwards. We must then exit telnet and reopen the connections. Right now we avoid this by turning off flex. Any expert there can suggest a solution so that we can still blank the screen and yet have the connections online? Please mail your reply besides posting. Thanks a thou. Just call me `Man'. raymond@jupiter.ame.arizona.edu /* End of text from comp.sys.mac */ NCSA Telnet must remain in constant contact with the host. Hosts typically send a "keepalive" packet every 45 seconds and they give up on you after 3 to 10 minutes. So if you have a screen-saver which takes over the CPU and does not give control back to the application, this problem is unavoidable. I have been told that Pyro is fixed. I use Moire 2.1 which does not have this problem. Tim Krauskopf NCSA
jeffc@leda (Jeff Currier) (04/26/89)
I know this has been talked about before, but I have a new twist. I have a MacIIx with a ethernet board and a Mac SE with a Kinetics ether card. I have tried several screen savers (flex,m0ire,ect) and all of these seen to cause the SE to hang when NCSA Telnet is running with open connections. On the other hand, the MAC IIx has no trouble. At first, I thought this might be because of the memory manager on the IIx, but now I beleive this is due to the way the hardware is connected. I am not a computer hardware person, but the SE ether card is connected to the port and the IIx is not, so does the configeration of the IIX respond the the packets set by the connected hosts differently than the SE. If the IIx's board can respond to packest even when other applications are running, this could explain why is doesn't hang. on the other hand, the SE card may not respond to packets when other applications are running. Is any of this correct? Is there a way to have the SE keep connections alive even when a screen saver is running? Thanks in advance. Jeff ---------------------------------------------------------- Jeff Currier (602)621-4948 Computational Fluid Mechanics Lab University of Arizona Tucson, AZ 85721 Reply to: currier@rvax.ccit.arizona.edu ----------------------------------------------------------