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SINFO is a system to distribute system information of every host on your local
network (via UDP).
It provides
system load,
memory usage
and
the top-5 running processes
in a similar manner as top(1).
It uses a minimal network bandwidth because of the broadcasting scheme used.
The demon needs not to be run as a root (exception FreeBSD)
- so there will be no security-risk.
sinfo should work on
* linux 2.4.x, 2.6.x
* (FreeBSD 8.2 ... partly)
* (solaris 2.8 tested up to 0.0.14)
QUICKSTART:
==========
export CXXFLAGS=-O3 # its better to enable optimization!
./configure
make
make install-strip # or "make install" if you want to waste some
# disk-space.
sinfod # (sinfod should be run at system startup)
sinfo
additional configure options
============================
--enable-SINFO_REQUEST_PORT=n
set the UDP REQUEST port used by sinfo to n 60002
--enable-SINFO_BROADCAST_PORT=n
set the UDP broadcast port used by sinfo to n
60003
--enable-SIMPLE_USER_CACHE
enable a simple cache for user name lookups
--enable-CPUNO_ADJUST adjust the number of cpus for hyperthreading
machines
sinfo access through your web server
====================================
After "make" you'll find a sample cgi-script
./cgi/sinfo.pl.cgi
You should move this script to the cgi-bin path of your web server. This perl
script calls "/usr/local/bin/sinfo -Wq" to produce html-output.
The path to sinfo (e.g. /usr/local/bin/sinfo ) is set during the run of
./configure according to --prefix resp. --exec_prefix.
Sinfo produces a very rudimentary html-output that has to be included in a
complete html page. This procedure lets you adopt the output output of sinfo
to your favored look and feel. Use ./cgi/sinfo.pl.cgi as a starting
point for your customizations.
TROUBLESHOOTING:
===============
compile problems:
* If you have an old ncurses library it may be necessary to set
export CXXFLAGS=-fpermissive
* If you have more than one curses.h file laying around in you
include-paths be sure to use the correct one by sorting the
entries in CPLUS_INCLUDE_PATH.
i.e. Solaris 8 normally needs: CPLUS_INCLUDE_PATH=/opt/sfw/include:...
ln -s /usr/local/lib/gcc-lib/sparc-sun-solaris2.8/2.95.2/include/math.h
ln -s /usr/local/lib/gcc-lib/sparc-sun-solaris2.8/2.95.2/include/curses.h
* On FreeBSD 8.2
Your need to make sure that
automake, boost and asio from the ports collection
(the port collection can be installed with sysinstall)
are installed:
cd /usr/ports
devel/automake
devel/boost
net/asio
make install clean
unpack sinfo
tar -xvzf sinfo-x.y.z.tar.gz
cd sinfo-x.y.z
And change
-lboost_signals-mt
to
-lboost_signals
in
sinfo/Makefile.am
and
sinfod/Makefile.am
./configure
CPLUS_INCLUDE_PATH=/usr/local/include LIBRARY_PATH=/usr/local/lib make
will compile the program for you
* your might even have to set
CXXFLAGS=-fpermissive
to change the "ANSI C++ conversation error" into a warning
that is produced by #including < >
/usr/include/sys/user.h:53,
-> /usr/include/vm/vm_map.h
runtime problems:
* On FreeBSD systems sinfod has to be run as root.
* sinfod --bcastaddress 127.0.0.1
may be necessary if you are running sinfod on a computer that is
not part of a LAN.
FILES:
=====
/usr/local/bin/sinfo ................ the user program
/usr/local/sbin/sinfod ............... the demon
Some scripts to start a program on all computers on your network:
/usr/local/bin/sshallsinfo ...... use ssh and get the list of hosts via "sinfo -Hq"
/usr/local/man/man1/sinfo.1 .......... man-pages
/usr/local/man/man1/sshallsinfo.1
/usr/local/man/man8/sinfod.8
not installed:
./cgi/sinfo.pl.cgi ... a sample perl-CGI-script for HTML-output ...
change to your needs and move to your cgi-bin directory
Juergen Rinas <jrinas@gmx.de>
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