How to create a range of ip addresses on ethx
Create a range file in /etc/sysconfig/network-scripts
Example:
Insert the following
DEVICE=eth0
BOOTPROTO=static
HWADDR=00:04:75:D4:C8:F9
IPADDR_START=192.168.0.6
IPADDR_END=192.168.0.10
CLONENUM_START=1
NETMASK=255.255.255.0
ONBOOT=yes
TYPE=Ethernet
CLONENUM_START — interface clone number to start using for this range. # eg “1″
Which would start at eth0:1
How to enable IP forwarding
To enable IP packet forwarding please edit /etc/sysctl.conf with your editor of choice and set:
#Controls IP packet forwarding
You can then verify your settings with:
How to get info about threads and security
To get info about threads:
To get security info:
ps -eo euser,ruser,suser,fuser,f,comm,label
ps axZ
ps -eM
Here are the different keywords that may be used to control the output format (e.g. with option -o) or to sort the selected processes with the GNU-style –sort option.
For example:
ps -eo pid,user,args –sort user
This version of ps tries to recognize most of the keywords used in other implementations of ps. The following user-defined format specifiers may contain spaces: args, cmd, comm, command, fname, ucmd, ucomm, lstart, bsdstart, start.
ps displays information about a selection of the active processes. If you want a repetitive update of the selection and the displayed information, use top(1) instead.
ps - report a snapshot of the current processes.
To see every process with a user-defined format:
ps -eo pid,tid,class,rtprio,ni,pri,psr,pcpu,stat,wchan:14,comm
ps axo stat,euid,ruid,tty,tpgid,sess,pgrp,ppid,pid,pcpu,comm
ps -eopid,tt,user,fname,tmout,f,wchan
