hosts to share an IP address, providing high availability and load
balancing.
Original work on CARP done by Michael Shalayeff, with many
additions by Marco Pfatschbacher and Ryan McBride.
FreeBSD port done solely by Max Laier.
Patch by: mlaier
Obtained from: OpenBSD (mickey, mcbride)
this can cause a really heavy load on system. Several kernel debugging
messages can be triggered even remotely (e.g. bad ARP replies).
Use kern.warning instead, so that really significant messages still
will be printed on console.
Reviewed by: current@
MFC after: 1 week
Security: this change fixes a DoS condition, when default system
console is serial, and box is flooded with bogus ARP
packets
frequencies are specified with performance_cpu_freq and economy_cpu_freq.
Of course, special values LOW and HIGH are also supported. Also, remove
old throttling support.
rc.d/mountcritlocal and sed(1) is placed in /usr/bin/. Other useful tools
for this task are also placed in /usr/ (tr(1), awk(1)), so I implemented
local_tr() function which works simlar to tr(1).
Reported by: Amir Shalem <amir@boom.org.il>
MFC after: 1 week
with the rest of the examples, so after discussion with him and gshapiro,
re-sort the examples, and add more comments to make things very obvious.
Also, divide the examples between example.{com|net|org} to make things
even more obvious, and use the same RFC 1918 block for all examples.
Pointed out by: Scot W. Hetzel <hetzels@westbend.net>
and so the fix committed in r1.42 was not quite correct for the case
where there are two or more DHCP consuming removable interfaces - dhclient
must be restarted so that the other interfaces continue to function
correctly.
Approved by: murray
MFC After: 7 days
user owns these directories or the sticky bit is unset may open security holes,
so simply create them at startup with the correct owner/mode.
MFC after: 1 day
reject. For example:
Checking for rejected mail hosts:
48 getherbalnow.info (451... resolve)
46 absorb.com (451... resolve)
4 tgmart01.codns.com (553... exist)
3 kali.com.cn (451... resolve)
2 genie.com (451... resolve)
1 zv.qy (553... exist)
1 zd.hinet.hr (553... exist)
....
The bit in parenthesis is the reject code and the last word on the line -
enough to give the admin a better chance of seeing real problems (hopefully!).
While I'm here, remove the "<" at the start of rejects coming from "from"
addresses without a name@ part.
I had to rewrite the patch given by the submitter as this script has been
sed'ified (used to be perl) and I think the reject code is useful....
PR: 17377
Idea from: root at ns dot internet dot dk
MFC after: 7 days
- add udav(4)
In the scsi-controller-regex:
- correct an entry
- move another one to the right place
- add a bunch of missing drivers
Glanced at by: trhodes (scsi-controller-regex part)
MFC after: 3 days
1. Feature: for flexibility reasons and as a prerequisite to clean
shutdowns, allow the configuration of a stop/shutdown command
via rc.conf variable "jail_<name>_exec_stop" in addition to the
start/boot command (rc.conf variable "jail_<name>_exec_start"). For
backward compatibility reasons, rc.conf variable "jail_<name>_exec"
is still supported, too.
2. Debug: Add the used boot/shutdown commands to the debug output of
the /etc/rc.d/jail script, too.
3. Security: Run the Jail start/boot command in a cleaned environment
to not leak information from the host to the Jail during startup.
4. Feature: Run the Jail stop/shutdown command "jail_<name>_exec_stop" on
"/etc/rc.d/jail stop <name>" to allow a graceful shutdown of the Jail
before its processes are just killed.
5. Bugfix: When killing the remaining Jail processes give the processes
time to actually perform their termination sequence. Without this the
subsequent umount(8) operations usually fail because the resources
are still in use. Additionally, if after trying to TERM-inate the
processes there are still processes hanging around, finally just KILL
them.
6. Bugfix: In rc.shutdown, if running inside a Jail, skip the /etc/rc.d/*
scripts which are flagged with the KEYWORD "nojail" to allow the
correct operation of rc.shutdown under jail_<name>_exec_stop="/bin/sh
/etc/rc.shutdown". This is analogous to what /etc/rc does inside a Jail.
Now the following typical host-configuration for two Jails works as
expected and correctly boots and shutdowns the Jails:
-----------------------------------------------------------
# /etc/rc.conf:
jail_enable="YES"
jail_list="foo bar"
jail_foo_rootdir="/j/foo"
jail_foo_hostname="foo.example.com"
jail_foo_ip="192.168.0.1"
jail_foo_devfs_enable="YES"
jail_foo_mount_enable="YES"
jail_foo_exec_start="/bin/sh /etc/rc"
jail_foo_exec_stop="/bin/sh /etc/rc.shutdown"
jail_bar_rootdir="/j/bar"
jail_bar_hostname="bar.example.com"
jail_bar_ip="192.168.0.2"
jail_bar_devfs_enable="YES"
jail_bar_mount_enable="YES"
jail_bar_exec_start="/path/to/kjailer -v"
jail_bar_exec_stop="/bin/sh -c 'killall kjailer && sleep 60'"
-----------------------------------------------------------
# /etc/fstab.foo
/v/foo /j/foo/v/foo nullfs rw 0 0
-----------------------------------------------------------
# /etc/fstab.bar
/v/bar /j/bar/v/bar nullfs rw 0 0
-----------------------------------------------------------
Reviewed by: freebsd-hackers
MFC after: 2 weeks
