|WHOB(8)||System Manager's Manual||WHOB(8)|
whobqueries various sources of whois information for data of interest to network operators and their tracing and debugging tools.
whob output is designed to be easily
parsed, or better yet, its functionality can be added directly into your
programs (see whois.h).
The only mandatory parameter is the target host name or IP number. Options toggle the display of more interesting data or change the sources used to obtain that data.
One key advantage of
whob is its lookup of
ASN information derived from the global Internet routing table itself, as
opposed to relying solely on what has been registered in the RADB/IRR (see
below). This data is, by default, sourced from the global pWhoIs service.
Other options are:
- Display all routing advertisements transiting the respective ASN. The ASN
may be supplied as the target argument, or a hostname or IP address may be
whobwill resolve the ASN automatically.
- Display all routing advertisements made by the respective Origin-AS. The
Origin-AS may be supplied as the target argument, or a hostname or IP
address may be supplied and
whobwill resolve the ASN automatically.
- Display all routing advertisements related to the CIDR prefix supplied by the user.
- Display all networks registered to the ASN supplied by the user.
- Display all contact information on file for the ASN supplied by the user.
- Disable GIGO mode. By popular request, whob takes input directly from the command line and passes it without modification to pWhoIs or whatever whois server is requested (-h). The exact output is returned without any parsing. To enable parsing and the other useful switches, disable GIGO mode by passing this (-g) option.
- Display the Origin-AS on record at the RADB/IRR (Routing Arbiter Database/Internet Routing Registry) in addition the the Origin-AS provided by the prefix-based whois data source.
- Display the network name on record with the IP network allocation registry also such as ARIN, RIPE, or APNIC.
- Display the organization name on file at the registrar.
- Display the AS-Path from the perspective of the current pwhois server. The pwhois server may automatically exclude the initial, least specific ASN received from the operator of the network to which it is connected (unless that ASN is the only/origin ASN or unless it has multiple peers). Of course, this AS-Path is subjective. If you rely on this and want AS-Paths that correspond to *your* network infrastructure, you may want to install your own pwhois server. See the (-w) option and www.pwhois.org
- Display the date the route was last cached by the pWhoIs server.
- When possible, display dates in UTC/GMT instead of local time.
- Change the source of prefix-based whois data from the default (pWhoIs) to any whois-compatible server of your choice (like your own).
- Read from the specified file (or from stdin if the argument is '-') and submit its contents as bulk input to pwhois. The input will be buffered accordingly and subject to the constraints of the current pwhois server. Output is written to STDOUT (which may be redirected) and will not be parsed. Additional instructions to pwhois may be placed at the beginning of the file, however they will only apply to the first buffer of pwhois input. The first (left-most) field in each line of the file must be the IP address and lines may be up to 255 characters in length.
- Change the source of prefix-based whois data from the default (pWhoIs) to
Cymru. See www.cymru.com for more details. When used with the -f option,
this switch causes
whobto use Cymru whois for bulk file resolution instead of pwhois.
- Display the Origin-AS and prefix according to RIPE NCC RIS (see
www.ripe.net/projects/ris/). When used with the -f option, this switch
whobto use RIPE NCC riswhois for bulk file resolution instead of pwhois.
- Show the status of the (respective) pWhoIs server and exit(0)
- Display verbose/debug output. Use multiple 'V's for additional verbosity.
- Display this client's version information and exit(1)
- Display this host's public IP address and exit(0)
AUTHORS¶Victor Oppleman and Eugene Antsilevitch
REPORTING BUGS¶To report bugs, send e-mail to <email@example.com>
SEE ALSO¶lft(8), whois(1)
whobcommand first appeared in 2004. This whois framework has been a component of LFT since 2002.
|August 17, 2002||WHOB|