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An UDP based ping program with an "ASCII-graphical" log file
License: GNU General Public License v2.0
This project forked from carragom/uplog
An UDP based ping program with an "ASCII-graphical" log file
License: GNU General Public License v2.0
Uplog - An UDP based ping program with an "ASCII-graphical" log file DESCRIPTION =========== Uplog is an UDP based ping program that gives an ASCII-graphical log of the packet losses. Once a second uplog sends a packet to the echo port (7) of the target host and waits for a reply. If it gets a reply a X is written, otherwise a dot (.) is written to the log file. If a packet with a wrong sequence number arrives a colon (:) is written to the log file. By examining the log file one can easily see when and how the packet losses occur. For instance the pattern below with 5 second sections of total packet loss suggests that there's some kind of routing problem caused by routing flaps. 2003-06-13 08:47 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX 2003-06-13 08:48 XXXXXXXXXXXXXXXXXXXXXXXXX.....XXXXX.....XXXXXXXXXXXXXXXXXXXX 2003-06-13 08:49 XXXXXXX.....XXXXX.....XXXXX...XXXXXXX.....XXXXXXXXXXXXXX.... 2003-06-13 08:50 .XXXXX.....XXXXXXXXXXXXXXXXXXXXXXXXXXX.....XXXXX.....XXXXX.. 2003-06-13 08:51 ...XXXXXXXXXXXXXXXXXX.....XXXXX.....XXXXXXXXXXXXXX......XXXX 2003-06-13 08:52 X.....XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX 2003-06-13 08:53 XXXXXXXXXXXXXXXXXXXXXXXXXX....XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX Or just that the network is slightly overloaded during peak hours as below. 2003-06-09 14:00 XXXXXXXXXXXXX.XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX 2003-06-09 14:01 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX 2003-06-09 14:02 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX 2003-06-09 14:03 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX.XXXXXXXXXXX 2003-06-09 14:04 XXXXXXXXXXXXXXXXXX.XXX.XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX 2003-06-09 14:05 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX.XXXXXXXXXXXXXXXXXXXXXXXXXXX 2003-06-09 14:06 XXXXXXXXXXXX.XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX 2003-06-09 14:07 XXXXXXXXXXXXXXXXXXX.XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX I'm currentlyy using uplog on one a Debian 3.0/i386 and a Slackware 8.1/i386 box. I've got a report that it works on Solaris also. Other distributions are untested but should probably work just fine. Please send me a mail if you get uplog up and running on one of your machines if the platform/OS is not listed here. COMPILE/INSTALL =============== Please read the INSTALL file for compile / installation issues. RUNNING ======= To run uplog simply give a host as the argument to uplog. The host name can either be given as a fqdn (www.nerdlabs.org) or as a dotted quad (195.66.47.97). uplog 195.66.47.97 Uplog will by default run in the background as a daemon and write the log file to the current directory. If you want to have the log file in another location the location can be specified with the -l option. uplog -l /var/log/uplog/ 195.66.47.97 By using the -f option uplog runs in the foreground instead and writes the log to stdout. uplog -f 195.66.47.97 The port to send the UDP packets to can be changed with the -p option. uplog -p 13 195.66.47.97 To terminate uplog when running as a daemon send a SIGHUP to it using the kill command. You need to look up the pid of the program with ps first. When running as a daemon all error messages are send to syslog using LOCAL7 as the facility. Since this is the first public release I'd appreciate it very much is you could send me a mail if you get uplog up and running on one of your machines. I'm using uplog on one Debian 3.0 and one Slackware 8.1 box, all other distributions are untested but should work. CONTACT ======= Any patches, suggestions, bug reports, attaboys, bug fixes, ideas and other stuff are welcome. Please mail me at [email protected].
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