hi > > Nice program.
thanks > Adding the "-s 1024" flag to ping would make the packets closer to the > size of FTP packets, and make the results more accurate. well, indeed I had done that after sending it > I would suggest that the program create its own temporary directory under > /tmp and delete it when it is done, rather than insist that ~/tmp exist. > Set your umask so that others do not have write permissions on the directory > and its files _before_ you create the directory. Mkdir will fail if any of > the security problems exist. I follow BUGTRAQ because I would like to learn more about security (that I do not understand) so I understood that creating stuff (either files or dirs) in /tmp is quite a delicate thing : if the script is run by root and the temporary name is easily predictable, then someome in the system can use this to do damage. I have in plan to ask a few questions on the subject; maybe the answer is to use names with an extension like this: /bin/dd if=/dev/random count=1 bs=16 2>/dev/null |\ /bin/sed -n l | /usr/bin/tr --delete --complement "[:alnum:]_\n" this generates a fairly random name I would implement it right now, but it doesn't work perfectly: indeed if you try /bin/dd if=/dev/random count=10 2>/dev/null |\ /bin/sed -n l | /usr/bin/tr --delete --complement "[:alnum:]_\n" you will notice that only a few bytes get thru... why? > Please do some AWK work to take the number of dropped packets into account. > "Speed" should probably be something like: > > reliability = (100 - dropped_packet_percentage) / 100 > real_speed = speed * reliability > > Indeed, because of the re-transmission delay for dropped packets, you > may want to increase the penalty for them above this. > > Thanks > ok I will put it in my TODO list I have a few scritps like this maybe in the future I will build a package of them. a.m. -- TO UNSUBSCRIBE FROM THIS MAILING LIST: e-mail the word "unsubscribe" to [EMAIL PROTECTED] . Trouble? e-mail to [EMAIL PROTECTED] .
