SYSCTL.CONF(5) File Formats SYSCTL.CONF(5)NAME
sysctl.conf - sysctl preload/configuration file
DESCRIPTION
sysctl.conf is a simple file containing sysctl values to be read in and set by sysctl. The syntax is simply as follows:
# comment
; comment
token = value
Note that blank lines are ignored, and whitespace before and after a token or value is ignored, although a value can contain whitespace
within. Lines which begin with a # or ; are considered comments and ignored.
EXAMPLE
# sysctl.conf sample
#
kernel.domainname = example.com
; this one has a space which will be written to the sysctl!
kernel.modprobe = /sbin/mod probe
FILES
/run/sysctl.d/*.conf
/etc/sysctl.d/*.conf
/usr/local/lib/sysctl.d/*.conf
/usr/lib/sysctl.d/*.conf
/lib/sysctl.d/*.conf
/etc/sysctl.conf
The paths where sysctl preload files usually exist. See also sysctl option --system.
SEE ALSO sysctl(8)AUTHOR
George Staikos <staikos@0wned.org>
REPORTING BUGS
Please send bug reports to <procps@freelists.org>
procps-ng January 2012 SYSCTL.CONF(5)
Check Out this Related Man Page
SYSCTL.CONF(5) BSD File Formats Manual SYSCTL.CONF(5)NAME
sysctl.conf -- kernel state defaults
DESCRIPTION
The /etc/sysctl.conf file is read in when the system goes into multi-user mode to set default settings for the kernel. The /etc/sysctl.conf
is in the format of the sysctl(8) command, i.e.
sysctl_mib=value
Comments are denoted by a ``#'' at the beginning of a line. Comments can also exist at the end of a line, as seen in the EXAMPLES section,
below.
FILES
/etc/sysctl.conf Initial settings for sysctl(8).
EXAMPLES
To turn off logging of programs that exit due to fatal signals you may use a configuration like
# Configure logging.
kern.logsigexit=0 # Do not log fatal signal exits (e.g. sig 11)
SEE ALSO rc.conf(5), rc(8), sysctl(8)HISTORY
The sysctl.conf file appeared in FreeBSD 4.0.
BUGS
If loadable kernel modules are used to introduce additional kernel functionality and sysctls to manage that functionality, sysctl.conf may be
processed too early in the boot process to set those sysctls. For example, sysctls to manage the linux emulator cannot be set in sysctl.conf
if the linux emulator is loaded as a module rather than compiled into the kernel.
BSD December 30, 1999 BSD
HI folks. I am developing a protocol and I need to bind to an IP address that is not configured to my machine. The problem is with bind(). The sysctl system call seamed to overcome the problem of bind if you set the proc/sys/net/ipv4/ip_nonlocal_bind flag. Although I tryed to set the flag either... (7 Replies)
Hello all! I am praying someone can help me. I have been trying to install dual nics on my FreeBSD box. In my attempts I edited my RC.CONF file. I must have editing something wrong, because during the boot sequence, my machine gets through bringing up most of the services then it stops and gets... (5 Replies)
dear fellows;
i have used ld.so.preload file to override connect() function, dynamic library overriding, it did worked really fine ......
but i went on to struck in a situation ... within the overrided connect() i have used printf once to see IP and Port to whom the connect request is being... (1 Reply)
As per Hardening guide for the server.
ICMP Broadcast Response: The kernel parameter icmp_echo_ignore_broadcasts must match to 1
However when i check the value of icmp_echo_ignore_broadcasts it thrown an error as unkonwn key.
# sysctl icmp_echo_ignore_broadcasts
error:... (2 Replies)
PH-UX newbie here, so please go slowly, step by step.
I've just tried to install XSW700GR1020 patch set (December 2001 CD) to my preloaded HP-UX 10.20 system.
After running for ages and installing pretty much most of the patches, when the mk_kernel step was run it failed with an unresolved... (7 Replies)
Hi
I am trying to setup a very basic dhcp dual stack configuration, so I have 2 dhcpd.conf file dhcpd4.conf and dhcpd6.conf
# cat /usr/local/etc/dhcpd4.conf
Subnet 10.45.192.0 netmask 255.255.248.0 {
option subnet-mask 255.255.248.0;
option routers 10.45.192.1;
}# cat... (0 Replies)
I typed in sysctl -A | grep na
result:
error: "Success" reading key "dev.parport.parport0.autoprobe"
error: permission denied on key 'net.ipv4.route.flush'
what about these errors? (9 Replies)
(solved,sry)
Heyas
I'd like to give a little preview of an existing conf file, but not showing comments or empty lines.
Sadly, either the output style is wrong, or not all values are printed.
My current issue is, that the first variable read (var) contains both, the first and the second... (2 Replies)