02-15-2007
The files under /dev/dsk are block special files, when you do an "ls -l" you will see all line start with a "b".
The files under /dev/rdsk are character special files, when you do an "ls -l" you will see all lines start with a "c".
- regular files
d directory
b block special file
c character special file
l soft link
s socket
p named pipe
Block special files are used for mounting etc.
Character specal files are used for formatting and filesystem check etc
That is why eacht entry in your vfstab contains both the block and character specil file.
You do NOT check filesystems which or NON local disks during boot. If you mount NFS filesystems it is up to the system who exports those filesystems to maintain the integrity. So "fsck pass" should be "no" for NFS fllesystems
For those disks which are checked during boot the number indicates an order.
Those with the lowest number are checked first, next those with the 2nd lowest number, etc
The "/" filesystem should be checked priot to all other filesystems and therefore have the lowest number. A good concept would be whenever you mout a filesystem on another fileystem you increae to number by 1.
Suppose I have 5 filesystems
/
/usr
/var
/opt
/opt/oracle
In this case "/" would get "1"
"/usr", "/var" and "/opt" get "2" since they are mounted on "/"
"/opt/oracle" would get "3" since it is mount on "/opt" which is mounted on "/".
In this scenario "/" would be checked first
Next "/usr", "/var" and "/opt" similtaniously
and last "/opt/oracle"
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LEARN ABOUT DEBIAN
if.conf
NETSCRIPT-2.2.conf(5) File Formats Manual NETSCRIPT-2.2.conf(5)
NAME
/etc/netscript/network.conf - interface, firewalling, and QoS configuration file.
/etc/netscript/if.conf - interface setup shell script file
/etc/netscript/qos.conf - QoS setup shell script file
/etc/netscript/ipfilter.conf - IP chains filtering shell script file
/etc/netscript/srvfilter.conf - server IP filter shell script file
DESCRIPTION
This manpage is a place holder until something better is written when the netscript itself has stopped changing rapidly.
Please see the README file in the /etc/netscript directory, and READ the configuration files if you need to change them. Apart from net-
work.conf, all of them contain sh (1) shell script functions which are there so that various things can be altered or hooked in at the
right place. Network.conf contains the full network setup details, including special interface setup for the likes of ciped/pppd/wanconfig,
and is fully commented with examples given.
UPGRADE PATH FROM KERNEL 2.2.X
The firewall/IP filtering stuff in ipfilter.conf is the part that changed radically with the move to iptables and a far better way of set-
ting up the IP filtering rules, however the QoS and interface startup/shutdown in if.conf have changed but are backwards compatible with
the old 2.2.x ipchains version of netscript for the interface address configuration settings. You will have to set up the filtering again
to use iptables by directly using the iptables commands.
Also, the kernel 2.2.x version scripts are set up so that iptables is only run on a 2.4.x kernel, otherwise IP forwarding is disabled if
beforehand you set IPFWDING_KERNEL to FILTER_ON in network.conf.
This means that when you upgrade a box to a 2.4.x router kernel, you should then be able to reboot it and log into remotely and upgrade
netscript to the version that will support 2.4.x. In this situation, if you have set old IPFWDING_KERNEL setting to FILTER_ON beforehand
in network.conf, all IP forwarding through the box will also be disabled. This means that you can safely remotely upgrade a firewall.
SEE ALSO
netscript(8), ipchains(8), iproute(8), brcfg(8).
AUTHOR
This manual page was written by Matthew Grant <grantma@anathoth.gen.nz>, for the Debian GNU/Linux system (but may be used by others).
BUGS
The author is lazy. He needs to write btter man pages...
November 23, 2000 NETSCRIPT-2.2.conf(5)