Linux Tips and Tools - Revision history

Gordp: /* Automatic (Pronounceable) Password Generation */

2013-10-10T18:23:55Z

Automatic (Pronounceable) Password Generation

← Older revision		Revision as of 18:23, 10 October 2013
Line 13:		Line 13:
	*'''-m 12''' minimum password length		*'''-m 12''' minimum password length
	*'''-x 12''' maximum password length		*'''-x 12''' maximum password length
	*'''-n 20''' generate 10 passwords After the '''egrep''' filtering below, you will get substantially fewer than 10 results.		*'''-n 20''' generate 20 passwords After the '''egrep''' filtering below, you will get substantially fewer than 20 results.
	*'''-E O''' exclude letters (upper-case only possible) O from password. This prevents confusion with "oh" and "zero".		*'''-E O''' exclude letters (upper-case only possible) O from password. This prevents confusion with "oh" and "zero".
	*'''\| egrep -v [ol]''' does the same as above, except it filters out/discards passwords with lower-case ol. This prevents confusion with "oh" and "zero"; "ell" and "one".		*'''\| egrep -v [ol]''' does the same as above, except it filters out/discards passwords with lower-case ol. This prevents confusion with "oh" and "zero"; "ell" and "one".

Gordp: /* Automatic (Pronounceable) Password Generation */

2013-10-10T18:22:40Z

Automatic (Pronounceable) Password Generation

← Older revision		Revision as of 18:22, 10 October 2013
Line 2:		Line 2:
	Use of automated tools will help ensure high-quality passwords, enhancing security. '''apg''' is one such tool, which (by default) attempts to generate pronounceable passwords.		Use of automated tools will help ensure high-quality passwords, enhancing security. '''apg''' is one such tool, which (by default) attempts to generate pronounceable passwords.
	Once '''apg''' is installed, invoking it like this will produce best results:		Once '''apg''' is installed, invoking it like this will produce best results:
	<font color=red>hostname</font> <font color=blue>~ #</font> '''/usr/bin/apg -M ~~NCL~~ -t -m 9 -x 9 -n 10 -E O \| egrep -v [ol]'''		<font color=red>hostname</font> <font color=blue>~ #</font> '''/usr/bin/apg -M NCLS -t -k -m 12 -x 12 -n 20 -E O \| egrep -v [ol]'''
	Explanation of options:		Explanation of options:
	*'''-M''' is a mode-switch, with following options which tell '''apg''' what characterset to use		*'''-M''' is a mode-switch, with following options which tell '''apg''' what characterset to use
Line 8:		Line 8:
	**'''-C''' upper-case (capital) letters must be included		**'''-C''' upper-case (capital) letters must be included
	**'''-L''' lower-case letters must be included		**'''-L''' lower-case letters must be included
	*'''-m 9''' minimum password length		**'''-S''' include special symbol set (punctuation and so on); uppercase makes this mandatory
	*'''-x 9''' maximum password length		*'''-t''' print out the pronunciation (in brackets) after the actual password
	*'''-n 10''' generate 10 passwords After the '''egrep''' filtering below, you will get substantially fewer than 10 results.		*'''-k''' check password against cracklib; requires that apg be compiled with cracklib support (may not always be the case, on our various machines)
			*'''-m 12''' minimum password length
			*'''-x 12''' maximum password length
			*'''-n 20''' generate 10 passwords After the '''egrep''' filtering below, you will get substantially fewer than 10 results.
	*'''-E O''' exclude letters (upper-case only possible) O from password. This prevents confusion with "oh" and "zero".		*'''-E O''' exclude letters (upper-case only possible) O from password. This prevents confusion with "oh" and "zero".
	*'''\| egrep -v [ol]''' does the same as above, except it filters out/discards passwords with lower-case ol. This prevents confusion with "oh" and "zero"; "ell" and "one".		*'''\| egrep -v [ol]''' does the same as above, except it filters out/discards passwords with lower-case ol. This prevents confusion with "oh" and "zero"; "ell" and "one".

Hha13: /* Automatic (Pronounceable) Password Generation */

2009-01-08T23:36:50Z

Automatic (Pronounceable) Password Generation

← Older revision		Revision as of 23:36, 8 January 2009
Line 2:		Line 2:
	Use of automated tools will help ensure high-quality passwords, enhancing security. '''apg''' is one such tool, which (by default) attempts to generate pronounceable passwords.		Use of automated tools will help ensure high-quality passwords, enhancing security. '''apg''' is one such tool, which (by default) attempts to generate pronounceable passwords.
	Once '''apg''' is installed, invoking it like this will produce best results:		Once '''apg''' is installed, invoking it like this will produce best results:
	<font color=red>hostname</font> <font color=blue>~ #</font> '''/usr/bin/apg -M NCL -k -t -m 9 -x 9 -n 10 -E O \| egrep -v [ol]'''		<font color=red>hostname</font> <font color=blue>~ #</font> '''/usr/bin/apg -M NCL -t -m 9 -x 9 -n 10 -E O \| egrep -v [ol]'''
	Explanation of options:		Explanation of options:
	*'''-M''' is a mode-switch, with following options which tell '''apg''' what characterset to use		*'''-M''' is a mode-switch, with following options which tell '''apg''' what characterset to use
Line 8:		Line 8:
	**'''-C''' upper-case (capital) letters must be included		**'''-C''' upper-case (capital) letters must be included
	**'''-L''' lower-case letters must be included		**'''-L''' lower-case letters must be included
	*'''-k''' check every generated password using cracklib. Cracklib support must be compiled-in.
	*'''-m 9''' minimum password length		*'''-m 9''' minimum password length
	*'''-x 9''' maximum password length		*'''-x 9''' maximum password length

Mmmark: Colourize Grep

2005-10-13T04:55:29Z

Colourize Grep

← Older revision		Revision as of 04:55, 13 October 2005
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	# genlop -i gcc		# genlop -i gcc

	<br>		== Colourize Grep ==
			Add this to your '''.bashrc''' file.

			<pre>
			if echo hello\|grep --color=auto l >/dev/null 2>&1; then
			export GREP_OPTIONS='--color=auto' GREP_COLOR='1;32'
			fi
			</pre>

Gordp: /* Genlop */

2005-09-06T18:43:32Z

Genlop

← Older revision		Revision as of 18:43, 6 September 2005
Line 43:		Line 43:
	# genlop -c		# genlop -c
	# genlop -i gcc		# genlop -i gcc

			<br>

Gordp: /* Screen */

2005-09-06T18:43:19Z

Screen

← Older revision		Revision as of 18:43, 6 September 2005
Line 31:		Line 31:
	<font color=blue>#</font> screen -r ####		<font color=blue>#</font> screen -r ####
	The first to reattach a session, and the second to list the screen sessions. The third is useful if there is more than one screen sessions you can reattach. Just list the sessions and then reattach with the specific numbers given for the session you want.		The first to reattach a session, and the second to list the screen sessions. The third is useful if there is more than one screen sessions you can reattach. Just list the sessions and then reattach with the specific numbers given for the session you want.

	<br>		<br>

Gordp: /* Screen */

2005-09-06T18:42:45Z

Screen

← Older revision		Revision as of 18:42, 6 September 2005
Line 31:		Line 31:
	<font color=blue>#</font> screen -r ####		<font color=blue>#</font> screen -r ####
	The first to reattach a session, and the second to list the screen sessions. The third is useful if there is more than one screen sessions you can reattach. Just list the sessions and then reattach with the specific numbers given for the session you want.		The first to reattach a session, and the second to list the screen sessions. The third is useful if there is more than one screen sessions you can reattach. Just list the sessions and then reattach with the specific numbers given for the session you want.
			<br>

	== Genlop ==		== Genlop ==

Gordp: /* Automatic (Pronounceable) Password Generation */

2005-09-06T18:42:01Z

Automatic (Pronounceable) Password Generation

← Older revision		Revision as of 18:42, 6 September 2005
Line 14:		Line 14:
	*'''-E O''' exclude letters (upper-case only possible) O from password. This prevents confusion with "oh" and "zero".		*'''-E O''' exclude letters (upper-case only possible) O from password. This prevents confusion with "oh" and "zero".
	*'''\| egrep -v [ol]''' does the same as above, except it filters out/discards passwords with lower-case ol. This prevents confusion with "oh" and "zero"; "ell" and "one".		*'''\| egrep -v [ol]''' does the same as above, except it filters out/discards passwords with lower-case ol. This prevents confusion with "oh" and "zero"; "ell" and "one".
			<br>

	== Screen ==		== Screen ==

Gordp: /* Automatic (Pronounceable) Password Generation */

2005-09-06T18:41:01Z

Automatic (Pronounceable) Password Generation

← Older revision		Revision as of 18:41, 6 September 2005
Line 2:		Line 2:
	Use of automated tools will help ensure high-quality passwords, enhancing security. '''apg''' is one such tool, which (by default) attempts to generate pronounceable passwords.		Use of automated tools will help ensure high-quality passwords, enhancing security. '''apg''' is one such tool, which (by default) attempts to generate pronounceable passwords.
	Once '''apg''' is installed, invoking it like this will produce best results:		Once '''apg''' is installed, invoking it like this will produce best results:
	<font color=red>hostname</font> <font color=blue>~ #</font> '''/usr/bin/apg -M NCL -k -t -m 9 -x 9 -n 10 -E ~~OWL~~ \| egrep -v [~~owl~~]'''		<font color=red>hostname</font> <font color=blue>~ #</font> '''/usr/bin/apg -M NCL -k -t -m 9 -x 9 -n 10 -E O \| egrep -v [ol]'''
	Explanation of options:		Explanation of options:
	*'''-M''' is a mode-switch, with following options which tell '''apg''' what characterset to use		*'''-M''' is a mode-switch, with following options which tell '''apg''' what characterset to use
Line 12:		Line 12:
	*'''-x 9''' maximum password length		*'''-x 9''' maximum password length
	*'''-n 10''' generate 10 passwords After the '''egrep''' filtering below, you will get substantially fewer than 10 results.		*'''-n 10''' generate 10 passwords After the '''egrep''' filtering below, you will get substantially fewer than 10 results.
	*'''-E ~~OWL~~''' exclude letters (upper-case only possible) ~~OWL~~ from password. This prevents confusion with "oh" and "zero~~"; "ell" and "one~~".		*'''-E O''' exclude letters (upper-case only possible) O from password. This prevents confusion with "oh" and "zero".
	*'''\| egrep -v [~~owl~~]''' does the same as above, except it filters out/discards passwords with lower-case ~~owl~~		*'''\| egrep -v [ol]''' does the same as above, except it filters out/discards passwords with lower-case ol. This prevents confusion with "oh" and "zero"; "ell" and "one".

	== Screen ==		== Screen ==

Mmmark at 05:40, 3 September 2005

2005-09-03T05:40:29Z

← Older revision		Revision as of 05:40, 3 September 2005
Line 30:		Line 30:
	<font color=blue>#</font> screen -r ####		<font color=blue>#</font> screen -r ####
	The first to reattach a session, and the second to list the screen sessions. The third is useful if there is more than one screen sessions you can reattach. Just list the sessions and then reattach with the specific numbers given for the session you want.		The first to reattach a session, and the second to list the screen sessions. The third is useful if there is more than one screen sessions you can reattach. Just list the sessions and then reattach with the specific numbers given for the session you want.

			== Genlop ==
			{{Gentoo}}
			Genlop is a log reporting program for gentoo's portage utility. Want to know how much longer the package being emerged will take? or average emerge time? This program has it all
			# emerge genlop

			Here's how to use it. First is emerge history, second is information on the current package being emerged + expected time remaining, third is for averge build time of that package.
			# genlop -l
			# genlop -c
			# genlop -i gcc