Frequently Asked Questions

- What's a cheop?
- Cheops (KEE-ops) was an ancient Egyptian pharoah who
built the largest pyramid at Giza
- Why doesn't it work over an IP masqueraded
connection?
- If I knew the answer, it would be fixed by now
- When I run cheops, it doesn't discover anything.
What's wrong?
- I'm not quite sure why, but it's very important that the
IP address of the hostname, as returned by the hostname command
be the same as the actual machine. This is almost always the problem.
- When I run cheops, the wait icon never goes away
and it simply says "Processing Replies". What's wrong?
- Cheops has trouble with gtk 1.2 for some reason. Enabling
gnome support will help make this problem go away, but clearly there
is either a bug in the gtk or a bug in cheops. If anyone has a fix
for this problem, I'd love to hear
from you.
- When I run cheops, it quits with
"Segmentation fault". What's wrong?
- Cheops has trouble with gtk 1.2 for some reason. Enabling
gnome support will help make this problem go away, but clearly there
is either a bug in the gtk or a bug in cheops. If anyone has a fix
for this problem, I'd love to hear
from you. Coders: Please help me debug cheops on gtk 1.2... this
is a major stumbling block right now.
- Do I need GNOME to run Cheops?
- No. Just be sure "USE_GNOME=1" is commented
with a "#" sign in the Makefile
- I get some error about ICMP_MINLEN not being
defined?
- Cheops 0.50 did not support libc5. Upgrade to the
latest version.
- I get some
error about ip_csum not being a member of struct ip?
- Comment out the #define ip_sum ip_csum in
libc.h. Someone write me an autoconf please.
- I get some
error about -lresolv?
- Read and edit
the Makefile, and comment out the line LIBS+=-lresolv.
Autoconf, please!
- My Windows NT machine is detected as a Cisco!/My
Macintosh is detected as an SCO box!
- I'll modify these
entries, but queso isn't perfect. Sometimes two OS's reply the same
way.
- I get some
error about -lresolv?
- Read and edit
the Makefile, and comment out the line LIBS+=-lresolv.
Autoconf, please!
- Isn't cheops just a hacker tool? Doesn't it just let people hack my network?
- No, it isn't. Cheops provides a simple interface that eases visualization
and access of your network and network resources. The technologies it
uses are essentially ping, traceroute, halfscanning, and queso, all of
which have been around for a while.
Cheops is no more a hacker tool than a file manager is because it presents
the filesystem in a way that is easier to visualize and access. Cheops
makes no attempt at being stealthy (beyond what is necessary to avoid
unnecessarily starting up services) or hiding what it's doing, and as such
would make a really terrible hacking tool anyway.
As as system administrator, Cheops provides you a convenient tool you
can use to pre-empt hacking by knowing just what is on your network and
just what services (and what versions of some of them) are running.
In any case, if you are not the administrator of your network, particularly
if you are on a campus network, you should probably ask your administrators
if it is acceptable to use cheops on your network, because it will almost
certainly set off alarms if you are on a paranoid network. I will not
be responsible if you get in trouble for using cheops!
Remember, good security is about being prepared,
not just hoping that nobody notices your front door is open.
- Is there a commercial version of cheops
- Yes, it's available here
and is available under a single user
license, for $150, or a site
license which
ranges from $500 to $5000 depending on options. For more information,
contact
the author.
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