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1. serverfault.com › questions › 41064What's the command-line utility in Windows to do a reverse DNS...

   serverfault.com › questions › 41064

   The trouble with "ping" is that it's not strictly a name server lookup tool (like nslookup) - for instance if you ping a hostname, it can be resolved to an IP address by a number of methods: DNS lookup, host file lookup, WINS (god forbid) or NetBIOS broadcast.

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     Stack Exchange Network. Stack Exchange network consists of...

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2. stackoverflow.com › questions › 26274062Find out what a given gcc Option/Flag is doing? - Stack Overflow

   stackoverflow.com › questions › 26274062

   9 paź 2014 · Command-lines passed to gcc or cc may be options for the compiler itself (gcc or cc) the linker (ld in my case) the assembler (as in my case), or the pre-processor (cpp in my case). +Z is a linker specific option.

3. serverfault.com › questions › 576293sshd tries reverse DNS lookups with UseDNS no - Server Fault

   serverfault.com › questions › 576293

   18 lut 2014 · sshd seems to almost always try to perform a reverse DNS lookup on new connections. For hosts without a PTR entry this causes delays of 5 seconds per query. Sometimes it accepts the connection immediately, sometimes it tries to resolve once, sometimes twice.

4. www.cyberciti.biz › faq › reverseReverse nslookup Command - nixCraft

   www.cyberciti.biz › faq › reverse

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   12 wrz 2024 · Explains how to use reverse nslookup command under UNIX/Linux or MS-Windows OS to find out an IP address to resolve a hostname/domain name.

5. www.cyberciti.biz › faq › how-to-tesHow To Test or Check Reverse DNS on a Linux / Unix

   www.cyberciti.biz › faq › how-to-tes

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   12 wrz 2024 · The most common uses of the reverse DNS are: Anti-spam. Network troubleshooting. Avoid spammers and phishers using a forward confirmed reverse DNS and more. You can use standard UNIX / Linux utilities such as nslookup command, dig command or host command to find out reverse DNS of a given IP address.

6. askubuntu.com › questions › 245707Not able to get the reverse DNS working - Ask Ubuntu

   askubuntu.com › questions › 245707

   21 sty 2013 · I had been struggling to get reverse DNS working using nslookup on Ubuntu 12.04. Here is the output of the nslookup command and the content of the different network related configuration files. What could be the possible reason for the nslookup not working?

7. serverfault.com › questions › 7056What's the reverse DNS command line utility? - Server Fault

   serverfault.com › questions › 7056

   11 maj 2009 · If you wanna do reverse DNS for "1.2.3.4", you have to lookup pointer records for "4.3.2.1.in-addr.arpa". My function takes in an IP address, reverses the order of the octets (i.e. changes it from 1.2.3.4 to 4.3.2.1), and then uses dig to execute the PTR lookup I just described.