History is certainly useless since it's under control of the user. I looked in my bash book at saw:
Quote:
...HISTCONTROL variable. If set to ignorespace, any commands that you type that start with a space won't appear in the history.
And there are many other ways to defeat history including typing "sh" and running a bourne shell for awhile.
I hate to be a party pooper, but accounting is also easily defeated. But why bother? Suppose your accounting records shows that I did:
OK, now what did I do?
Some versions of unix have C2 level security features. You can configure them to track every system call invoked by every user. This puts a nasty load of the system though. Short of this, you aren't going to be able to reliably track what users do.
During the course of the session before I logout I see some of the commands listed from my previous session but not from my current session and after I logout and log back in I see the commands which I ran before logging out.
Does the .bash_history stay in the buffer or someplace else then?
... (2 Replies)
Dear All,
I am creating users on our servers. the .bash_history supposed to store all the commands entered by the user. My question is, how can I prevent the user himself from editing or viewing this file?
I have tried chaning the owner of the .bash_history to be the root user but... (5 Replies)
Hi Experts,
I know my question would be strange but i need to understand how the .bash_history file is logging user actions (the mechanism) and if possible modify it to include also the date/time of every action done by the user.
Sample file:
# more .bash_history
ssh <IP address> -l axadmin... (3 Replies)
Hi - user commands are written in . bash_history of that user when he logs out. my bash_history file shows. not sure what that number means
#1329618972
ls -la
#1329618978
ls
#1329618980
ls -la
my bash_profile looks like this
PATH=$PATH:$HOME/bin
export PATH
export... (3 Replies)
rm -rf .bash_history some one ran rm -rf .bash_history on my Linux server(SUSE),I can see this command being run in current history, but I want the OLD history as well,can I recover the old history back. (9 Replies)
Hi would like to ask if there is anyway to display .bash_history with timestamp using shell script?
i know that you should use history command with HISTTIMEFORMAT="%d/%m/%y %T " to display it in terminal but it does not work when i use it on shell script. It seem that you can't run history... (1 Reply)
I am using the bash shell.
When I view my recent command history using the "history" command from the prompt, it only shows me the commands starting at #928.
The commands I need are earlier than that, but I can't figure out how to make the other 927 display.
They are in my .bash_history... (1 Reply)
Discussion started by: Twinklefingers
1 Replies
LEARN ABOUT OSX
net::dns::question
Net::DNS::Question(3) User Contributed Perl Documentation Net::DNS::Question(3)NAME
Net::DNS::Question - DNS question record
SYNOPSIS
use Net::DNS::Question;
$question = new Net::DNS::Question('example.com', 'A', 'IN');
DESCRIPTION
A Net::DNS::Question object represents a record in the question section of a DNS packet.
METHODS
new
$question = new Net::DNS::Question('example.com', 'A', 'IN');
$question = new Net::DNS::Question('example.com');
$question = new Net::DNS::Question('192.0.32.10', 'PTR', 'IN');
$question = new Net::DNS::Question('192.0.32.10');
Creates a question object from the domain, type, and class passed as arguments. One or both type and class arguments may be omitted and
will assume the default values shown above.
RFC4291 and RFC4632 IP address/prefix notation is supported for queries in both in-addr.arpa and ip6.arpa namespaces.
decode
$question = decode Net::DNS::Question($data, $offset);
($question, $offset) = decode Net::DNS::Question($data, $offset);
Decodes the question record at the specified location within a DNS wire-format packet. The first argument is a reference to the buffer
containing the packet data. The second argument is the offset of the start of the question record.
Returns a Net::DNS::Question object and the offset of the next location in the packet.
An exception is raised if the object cannot be created (e.g., corrupt or insufficient data).
encode
$data = $question->encode( $offset, $hash );
Returns the Net::DNS::Question in binary format suitable for inclusion in a DNS packet buffer.
The optional arguments are the offset within the packet data where the Net::DNS::Question is to be stored and a reference to a hash table
used to index compressed names within the packet.
qname, zname
$qname = $question->qname;
$zname = $question->zname;
Returns the question name attribute. In dynamic update packets, this attribute is known as zname() and refers to the zone name.
qtype, ztype
$qtype = $question->qtype;
$ztype = $question->ztype;
Returns the question type attribute. In dynamic update packets, this attribute is known as ztype() and refers to the zone type.
qclass, zclass
$qclass = $question->qclass;
$zclass = $question->zclass;
Returns the question class attribute. In dynamic update packets, this attribute is known as zclass() and refers to the zone class.
print
$object->print;
Prints the record to the standard output. Calls the string() method to get the string representation.
string
print "string = ", $question->string, "
";
Returns a string representation of the question record.
COPYRIGHT
Copyright (c)1997-2002 Michael Fuhr.
Portions Copyright (c)2002-2004 Chris Reinhardt.
Portions Copyright (c)2003,2006-2011 Dick Franks.
All rights reserved.
This program is free software; you may redistribute it and/or modify it under the same terms as Perl itself.
SEE ALSO
perl, Net::DNS, Net::DNS::DomainName, Net::DNS::Packet, RFC 1035 Section 4.1.2
perl v5.16.2 2012-01-27 Net::DNS::Question(3)