The Traceroute package contains a program which is used to display the network route that packets take to reach a specified host. This is a standard network troubleshooting tool. If you find yourself unable to connect to another system, traceroute can help pinpoint the problem.
Download (HTTP): http://gd.tuwien.ac.at/platform/sun/packages/solaris/freeware/SOURCES/traceroute-1.4a12.tar.gz
Download (FTP): ftp://ftp.ee.lbl.gov/traceroute-1.4a12.tar.gz
Download MD5 sum: 964d599ef696efccdeebe7721cd4828d
Download size: 74 KB
Estimated disk space required: 540 KB
Estimated build time: 0.01 SBU
User Notes: http://wiki.linuxfromscratch.org/blfs/wiki/traceroute
Install Traceroute by running the following commands:
sed -i -e 's/-o bin/-o root/' Makefile.in && ./configure --prefix=/usr && make
Now, as the root
user:
make install && make install-man
sed 's/-o bin/-o root/'
Makefile.in: Adjusts the Makefile
so that the program is installed with
user root
owning the files instead
of user bin
(which doesn't exist on
a default LFS system).
make install:
Installs traceroute
with SUID set to root
in the
/usr/sbin
directory. This makes it
possible for all users to execute traceroute. For absolute
security, turn off the SUID bit in traceroute's file permissions
with the command:
chmod -v 0755 /usr/sbin/traceroute
The risk is that if a security problem such as a buffer overflow
was ever found in the Traceroute
code, a regular user on your system could gain root
access if the program is SUID root
. Of course, removing the SUID permission
also makes it impossible for users other than root
to utilize traceroute, so decide what's
right for your individual situation.
The goal of BLFS is to be completely FHS compliant, so if you do
leave the traceroute
binary SUID root
, then you should
move traceroute
to /usr/bin
with the following command:
mv -v /usr/sbin/traceroute /usr/bin
This ensures that the binary is in the path for non-root users.
Last updated on 2007-04-04 14:42:53 -0500