Sponsored Content
Top Forums UNIX for Advanced & Expert Users Playing with whois & dig - getting all the a records (globally) Post 302869297 by coolatt on Wednesday 30th of October 2013 04:21:44 AM
Old 10-30-2013
Debian Playing with whois & dig - getting all the a records (globally)

Dear All,

I want to get all the IPs of the A RECORDS for mail.google.com.
The aim is to deny access to these IPs.
I learnt that mail.google.com has several IPs.

I did the following steps:
1. whois google.com
2. I got the following as its DOMAIN SERVERS:
Quote:
ns3.google.com
ns2.google.com
ns1.google.com
ns4.google.com
3.# dig @ns1.google.com a mail.google.com

Code:
;; ANSWER SECTION:
mail.google.com.    0    IN    CNAME    googlemail.l.google.com.
googlemail.l.google.com. 300    IN    A    74.125.233.86
googlemail.l.google.com. 300    IN    A    74.125.233.85

I thought this would give me all the IPs.Smilie

Currently, in an attempt to get the other IPs I am digging 4.2.2.2 & other free public dns servers..

someone please explain to me why
Code:
dig @ns1.google.com  a mail.google.com

does not give the full list & how other FreeDNS servers are getting different IPs?
 

9 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

installing globally

where is the best location in a system to install software globally for users to use. asuming your the sys admin. i know it might not matter, but just wondering. (2 Replies)
Discussion started by: savage
2 Replies

2. Shell Programming and Scripting

Javascript Replace Globally

I have a bit of javascript function hasSpaces(name) { if(name.search(/^\s*/) != -1){ alert(name); name.replace((/^\s*/, "~")) alert(name); } return name; } ... (2 Replies)
Discussion started by: insania
2 Replies

3. Shell Programming and Scripting

Sort & Split records in a file

Hi, I am new to scripting. I need a script to sort and the records in a file and then split them into different files. For example, the file is: H1...................... H2...................... D2.................... D2.................... H1........................... (15 Replies)
Discussion started by: Sunitha_edi82
15 Replies

4. Shell Programming and Scripting

Format & re-arrange the records

Data on my input file : Ac1n1s1c2n2s2XPd1r1e1t1d2r2e2t2d3r3e3t3d4r4e4t4RT Bh1k1p1h2k2p2NTq1y1f1m1q2y2f2m2q3y3f3m3q4y4f4m4ZN and i want the output to be: Ac1n1s1XPd1r1e1t1RT Ac1n1s1XPd2r2e2t2RT Ac1n1s1XPd3r3e3t3RT Ac1n1s1XPd4r4e4t4RT Ac2n2s2XPd1r1e1t1RT Ac2n2s2XPd2r2e2t2RT... (6 Replies)
Discussion started by: rlmadhav
6 Replies

5. Shell Programming and Scripting

renaming files globally

I am attempting to use a shell script to append the string "AAA" to the beginning of over 400 files and I am just missing that little piece to finish. I am still a newbie and I am still learning scripting. This is what I have so far: #!/usr/bin/ksh find /home/vedder191/AAA_revised -type... (4 Replies)
Discussion started by: vedder191
4 Replies

6. UNIX for Dummies Questions & Answers

replacing a particular instance in a string globally

Hi, I'm trying to update the last two characters coming in a string globally in a file. Here is the sample data: file1 In file1, I want to have all instances replace where _o is appearing in the end of a word with _g. If _o is appearing in the middle or any other position except the... (2 Replies)
Discussion started by: er_ashu
2 Replies

7. Shell Programming and Scripting

Split a single record to multiple records & add folder name to each line

Hi Gurus, I need to cut single record in the file(asdf) to multile records based on the number of bytes..(44 characters). So every record will have 44 characters. All the records should be in the same file..to each of these lines I need to add the folder(<date>) name. I have a dir. in which... (20 Replies)
Discussion started by: ram2581
20 Replies

8. IP Networking

Dig only returns MX records in +trace mode

One of our email recipients has 17 mx records, and our emailing program postfix on linux does not retrieve these records. When using dig, the same thing happens. This command returns no mx records >dig mx fnb.co.za But when using +trace, the records get returned >dig mx fnb.co.za +trace ... (4 Replies)
Discussion started by: Joop Kaashoek
4 Replies

9. Shell Programming and Scripting

CSV File:Filter duplicate records from column1 & another column having unique record

Hi Experts, I have csv file with 30, 40 columns Pasting just 2 column for problem description. Need to print error if below combination is not present in file check for column-1 (DocumentNumber) and filter columns where value in DocumentNumber field is same. For all such rows, the field... (7 Replies)
Discussion started by: as7951
7 Replies
WHOIS(1)						    BSD General Commands Manual 						  WHOIS(1)

NAME
whois -- Internet domain name and network number directory service SYNOPSIS
whois [-aAbdgiIlmQrR6] [-c country-code | -h host] [-p port] name ... DESCRIPTION
The whois utility looks up records in the databases maintained by several Network Information Centers (NICs). The options are as follows: -6 Use the IPv6 Resource Center (6bone) database. It contains network names and addresses for the IPv6 network. -A Use the Asia/Pacific Network Information Center (APNIC) database. It contains network numbers used in East Asia, Australia, New Zea- land, and the Pacific islands. -a Use the American Registry for Internet Numbers (ARIN) database. It contains network numbers used in those parts of the world covered neither by APNIC nor by RIPE. (Hint: All point of contact handles in the ARIN whois database end with "-ARIN".) -b Use the Network Abuse Clearinghouse database. It contains addresses to which network abuse should be reported, indexed by domain name. -c country-code This is the equivalent of using the -h option with an argument of "country-code.whois-servers.net". -d Use the US Department of Defense database. It contains points of contact for subdomains of .MIL. -g Use the US non-military federal government database, which contains points of contact for subdomains of .GOV. -h host Use the specified host instead of the default variant. Either a host name or an IP address may be specified. By default whois constructs the name of a whois server to use from the top-level domain (TLD) of the supplied (single) argument, and appending ".whois-servers.net". This effectively allows a suitable whois server to be selected automatically for a large number of TLDs. In the event that an IP address is specified, the whois server will default to the American Registry for Internet Numbers (ARIN). If a query to ARIN references APNIC, LACNIC, or RIPE, that server will be queried also, provided that the -Q option is not specified. If the query is not a domain name or IP address, whois will fall back to whois.crsnic.net. -I Use the Internet Assigned Numbers Authority (IANA) database. It contains network information for top-level domains. -i Use the Network Solutions Registry for Internet Numbers (whois.networksolutions.com) database. It contains network numbers and domain contact information for most of .COM, .NET, .ORG and .EDU domains. NOTE! The registration of these domains is now done by a number of independent and competing registrars. This database holds no information on domains registered by organizations other than Network Solutions, Inc. Also, note that the InterNIC database (whois.internic.net) is no longer handled by Network Solutions, Inc. For details, see http://www.internic.net/. (Hint: Contact information, identified by the term handle, can be looked up by prefixing "handle " to the NIC handle in the query.) -l Use the Latin American and Caribbean IP address Regional Registry (LACNIC) database. It contains network numbers used in much of Latin America and the Caribbean. -m Use the Route Arbiter Database (RADB) database. It contains route policy specifications for a large number of operators' networks. -p port Connect to the whois server on port. If this option is not specified, whois defaults to port 43. -Q Do a quick lookup. This means that whois will not attempt to lookup the name in the authoritative whois server (if one is listed). This option has no effect when combined with any other options. -R Use the Russia Network Information Center (RIPN) database. It contains network numbers and domain contact information for subdomains of .RU. This option is deprecated; use the -c option with an argument of "RU" instead. -r Use the R'eseaux IP Europ'eens (RIPE) database. It contains network numbers and domain contact information for Europe. The operands specified to whois are treated independently and may be used as queries on different whois servers. EXAMPLES
Most types of data, such as domain names and IP addresses, can be used as arguments to whois without any options, and whois will choose the correct whois server to query. Some exceptions, where whois will not be able to handle data correctly, are detailed below. To obtain contact information about an administrator located in the Russian TLD domain "RU", use the -c option as shown in the following example, where CONTACT-ID is substituted with the actual contact identifier. whois -c RU CONTACT-ID (Note: This example is specific to the TLD "RU", but other TLDs can be queried by using a similar syntax.) The following example demonstrates how to obtain information about an IPv6 address or hostname using the -6 option, which directs the query to 6bone. whois -6 IPv6-IP-Address The following example demonstrates how to query a whois server using a non-standard port, where ``query-data'' is the query to be sent to ``whois.example.com'' on port ``rwhois'' (written numerically as 4321). whois -h whois.example.com -p rwhois query-data SEE ALSO
Ken Harrenstien and Vic White, NICNAME/WHOIS, 1 March 1982, RFC 812. HISTORY
The whois command appeared in 4.3BSD. BSD
June 14, 2004 BSD
All times are GMT -4. The time now is 11:15 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy