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Hi,

for debugging purposes I suggest you add some these logging rules

# Logging rules of what packages are dropped
iptables -A INPUT -j LOG
iptables -A OUTPUT -j LOG
iptables -A FORWARD -j...

The standard host resolution is determined by /etc/nsswitch.conf
Add dns to the hosts line!
Example
hosts: files dns

format for /etc/sudoers file ...
who where = (as_whom) what
the sample below will allow jack to only run /dir/command only on host17 only as user jill ... see man sudoers for more info ...
jack...

Here is a bash approach:
#!/bin/bash

while read line
do
for num in ${line//,/ }
do
if [[ "$num" =~ \- ]]
then
if [[...

Single-quote the trap command so that the variable is evaluated only when the trap signal occurs and not when the trap is being set.
trap 'rm -f $PIPE;exit' EXIT

./myscript | ssh username@host ./otherscript

Also possible is things like netcat (nc).

Use a pipe to supply input to the code block:
awk '{print $2}' FS=":" "${FILE}" | {
read M_GRP_ID || m_fail 1 "Error: Read failed 1 (${FUNCNAME})"
read M_GRP_WAIT || m_fail 1...

Try setting the setgid bit on the directory's entry to the desired group; $ chmod g+s tdir
$ chown :groupx tdir
$ ls -lad tdir
drwxr-srwx 2 nobody groupx 4096 Aug 26 12:54 tdir/
$ touch tdir/xy...

On most systems you have some sort of system-wide profile, which is called before individual profiles are called. Use the id command to get the group set of the user logging on there and implement a...

When a user with ksh as their login shell logs in, ksh executes /etc/profile and then $HOME/.profile. Your system administrator could use id -gn or id -Gn to determine if the user is a member of...

Suppose you want a group, say gid=10 which is staff, using POSIX compliant id:


[ `id -g` -eq 10 ] && M_ROOT=/usr/local/bin/m_prog
[ "`id -gn`" = "staff" ] && M_ROOT=/usr/local/bin/m_prog


...

it's very likely shell code was placed directly in the command="" then. it replaces the clients requested command in that the client no longer has any choice of what is ran. it sounds like exactly...

Every shell has a cd command. They all invoke chdir() to accomplish it.

dead process == zombie? What is your definition of a dead process?

The OS cycles the pid of new processes from 1 -> signed short max for most systems.

You should be checking the user/owner...