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Could anyone help explain this?
Post 302343403 by Squall Moogle on Wednesday 12th of August 2009 10:43:47 AM
08-12-2009
Thanks for the replies 
.
I have been scouring Google for answers, found a few gems but also found it hard to understand quite a bit of it. As I said it's not really my area, I'd have rather swapped it for a media based module etc etc.
Thanks for being sketchy too, your hints have given me food for thought.
.I have been scouring Google for answers, found a few gems but also found it hard to understand quite a bit of it. As I said it's not really my area, I'd have rather swapped it for a media based module etc etc.
Thanks for being sketchy too, your hints have given me food for thought.
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networks
networks(4) File Formats networks(4) NAME
networks - network name database SYNOPSIS
/etc/inet/networks /etc/networks DESCRIPTION
The networks file is a local source of information regarding the networks which comprise the Internet. The networks file can be used in conjunction with, or instead of, other networks sources, including the NIS maps networks.byname and networks.byaddr and the NIS+ table networks. Programs use the getnetbyname(3SOCKET) routines to access this information. The network file has a single line for each network, with the following information: official-network-name network-number aliases Items are separated by any number of SPACE or TAB characters. A `#' indicates the beginning of a comment. Characters up to the end of the line are not interpreted by routines which search the file. This file is normally created from the official network database maintained at the Network Information Control Center (NIC), though local changes may be required to bring it up to date regarding unofficial aliases and/or unknown networks. Network numbers may be specified in the conventional dot (`.') notation using the inet_network routine from the Internet address manipula- tion library, inet(7P). Network names may contain any printable character other than a field delimiter, NEWLINE, or comment character. SEE ALSO
getnetbyaddr(3SOCKET), getnetbyname(3SOCKET), inet(3SOCKET), nsswitch.conf(4), inet(7P) NOTES
The official SVR4 name of the networks file is /etc/inet/networks. The symbolic link /etc/networks exists for BSD compatibility. The network number in networks database is the host address shifted to the right by the number of 0 bits in the address mask. For example, for the address 24.132.47.86 that has a mask of fffffe00, its network number is 803351. This is obtained when the address is shifted right by 9 bits. The address maps to 12.66.23. The trailing 0 bits should not be specified. The network number here is different from that described in netmasks(4). For this example, the entry in netmasks would be 24.132.46.0 fffffe00. SunOS 5.11 17 Jan 2002 networks(4)