11-20-2007
I want to remind everyone that our
rules state:
(11) These are not hacker boards so hacker related posts will be promptly deleted or moderated.
This means that we can discuss the vendor supported root password reset technique that requires physical access to the system, but
not how to exploit weaknesses in the software that may allow root access.
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1. UNIX for Dummies Questions & Answers
is there any way for a root user to find the password for any other users without resetting the orignial passwords? (1 Reply)
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We have quite a few threads about this subject. I have collected some of them and arranged them by the OS which is primarily discussed in the thread. That is because the exact procedure depends on the OS involved. What's more, since you often need to interact with the boot process, the... (0 Replies)
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wish to know how to access root password it root password is forgotten in linux (1 Reply)
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Hi folks,
I'm trying to install a program, and I want to place some of the executables into /usr/bin so that they can be executed from any folder on the computer. I've been giveng the root password, but told never to log in directly as root. Instead, I can wait for a password prompt. However, I... (2 Replies)
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Hi, yesterday, I changed root's shell in /etc/passwd, cause a mistake then I can not log in root account (can't find correct shell). I attempted to log in single-mode, however, it prompted for single-mode's password then I type root's password but still can not log in.
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Hi Friends.
I am new to scripting now i want to change the root password using the script with standard password.
which is the easy scripting to learn for the beginner, Thanks in advance. (2 Replies)
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7. Solaris
Hello All,
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Hi All
Hope it's okay to post on this sub-forum, couldn't find a better place
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We are having a little problem on a server. We want that some users should be able to do e.g. sudo and become root, but with the restriction that the user can't change root password. That is, a guarantee that we still can login to that server and become root no matter of what the other users will... (2 Replies)
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i do not have root on a solairs 10 server , however i do have the root role, i was wondering if I can change the root password as a a role with the passwd command? I have not tried yet.
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i need to patch is why i am asking.
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LEARN ABOUT REDHAT
www::robotrules
WWW::RobotRules(3) User Contributed Perl Documentation WWW::RobotRules(3)
NAME
WWW::RobotsRules - Parse robots.txt files
SYNOPSIS
require WWW::RobotRules;
my $robotsrules = new WWW::RobotRules 'MOMspider/1.0';
use LWP::Simple qw(get);
$url = "http://some.place/robots.txt";
my $robots_txt = get $url;
$robotsrules->parse($url, $robots_txt);
$url = "http://some.other.place/robots.txt";
my $robots_txt = get $url;
$robotsrules->parse($url, $robots_txt);
# Now we are able to check if a URL is valid for those servers that
# we have obtained and parsed "robots.txt" files for.
if($robotsrules->allowed($url)) {
$c = get $url;
...
}
DESCRIPTION
This module parses a /robots.txt file as specified in "A Standard for Robot Exclusion", described in
<http://info.webcrawler.com/mak/projects/robots/norobots.html> Webmasters can use the /robots.txt file to disallow conforming robots access
to parts of their web site.
The parsed file is kept in the WWW::RobotRules object, and this object provides methods to check if access to a given URL is prohibited.
The same WWW::RobotRules object can parse multiple /robots.txt files.
The following methods are provided:
$rules = WWW::RobotRules->new($robot_name)
This is the constructor for WWW::RobotRules objects. The first argument given to new() is the name of the robot.
$rules->parse($robot_txt_url, $content, $fresh_until)
The parse() method takes as arguments the URL that was used to retrieve the /robots.txt file, and the contents of the file.
$rules->allowed($uri)
Returns TRUE if this robot is allowed to retrieve this URL.
$rules->agent([$name])
Get/set the agent name. NOTE: Changing the agent name will clear the robots.txt rules and expire times out of the cache.
ROBOTS.TXT
The format and semantics of the "/robots.txt" file are as follows (this is an edited abstract of
<http://info.webcrawler.com/mak/projects/robots/norobots.html>):
The file consists of one or more records separated by one or more blank lines. Each record contains lines of the form
<field-name>: <value>
The field name is case insensitive. Text after the '#' character on a line is ignored during parsing. This is used for comments. The
following <field-names> can be used:
User-Agent
The value of this field is the name of the robot the record is describing access policy for. If more than one User-Agent field is
present the record describes an identical access policy for more than one robot. At least one field needs to be present per record. If
the value is '*', the record describes the default access policy for any robot that has not not matched any of the other records.
Disallow
The value of this field specifies a partial URL that is not to be visited. This can be a full path, or a partial path; any URL that
starts with this value will not be retrieved
ROBOTS.TXT EXAMPLES
The following example "/robots.txt" file specifies that no robots should visit any URL starting with "/cyberworld/map/" or "/tmp/":
User-agent: *
Disallow: /cyberworld/map/ # This is an infinite virtual URL space
Disallow: /tmp/ # these will soon disappear
This example "/robots.txt" file specifies that no robots should visit any URL starting with "/cyberworld/map/", except the robot called
"cybermapper":
User-agent: *
Disallow: /cyberworld/map/ # This is an infinite virtual URL space
# Cybermapper knows where to go.
User-agent: cybermapper
Disallow:
This example indicates that no robots should visit this site further:
# go away
User-agent: *
Disallow: /
SEE ALSO
LWP::RobotUA, WWW::RobotRules::AnyDBM_File
libwww-perl-5.65 2001-04-20 WWW::RobotRules(3)