Sudo - Revision history

Leo at 01:58, 15 June 2020

2020-06-15T01:58:49Z

2020-06-15T01:58:27Z

Leo moved page Sudoers to Sudo: Sudoers should be under sudo

← Older revision	Revision as of 01:58, 15 June 2020
(No difference)

2019-10-02T19:49:28Z

regex

← Older revision		Revision as of 19:49, 2 October 2019
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	Ensure the {{code\|#includedir}} directive is defined in {{code\|/etc/sudoers}}. This is disabled by default on some distributions and none of the config files there will be loaded.		Ensure the {{code\|#includedir}} directive is defined in {{code\|/etc/sudoers}}. This is disabled by default on some distributions and none of the config files there will be loaded.

			== Regular Expression Matching ==
			Sudoers does not support regular expression matching. It only supports glob expansion, which only works for file names and paths.

			If regular expression is absolutely necessary, use a wrapper script instead.

			For example, this script will only allow 'yum install' to run on package names matching a particular regex and not packages that are local files.
			{{highlight\|lang=bash\|filename=/bin/yum-wrapper.sh\|code=
			<nowiki>
			#!/bin/bash

			if [ -f "$1" ] ; then
			echo "Error: Cannot install local package file."
			exit
			fi

			if ! [[ "$1" =~ ^[a-zA-Z0-9._-]+$ ]] ; then
			echo "Error: Invaild package name."
			exit
			fi

			yum install "$1"
			</nowiki>
			}}

			The sudoers file would look something like this:
			{{highlight\|lang=text\|code=
			sa-lleung@uc.ucalgary.ca ALL=(root) NOPASSWD: /bin/yum-wrapper.sh
			}}

			The script could be made a bit smarter to allow multiple argument parsing.

	== Troubleshooting ==		== Troubleshooting ==

2019-09-12T05:01:05Z

WP content from http://leo.steamr.com/2012/11/sudoers-d-is-not-read-loaded-by-sudo/

← Older revision		Revision as of 05:01, 12 September 2019
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	}}		}}

	Ensure the {{code\|#includedir}} directive is defined in {{code\|/etc/sudoers}}.		Ensure the {{code\|#includedir}} directive is defined in {{code\|/etc/sudoers}}. This is disabled by default on some distributions and none of the config files there will be loaded.

	== Troubleshooting ==		== Troubleshooting ==

2019-09-12T03:37:07Z

sudo: no tty present and no askpass program specified: formatting

← Older revision		Revision as of 03:37, 12 September 2019
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	=== sudo: no tty present and no askpass program specified ===		=== sudo: no tty present and no askpass program specified ===
			If you get {{highlight\|lang=text\|code=
			sudo: no tty present and no askpass program specified
			}}

			Make sure you have {{code\|NOPASSWD}} set in your {{code\|/etc/sudoers}} file.

	~~make sure you have NOPASSWD set in your sudoers file.~~
	Eg. The files should have a line like:		Eg. The files should have a line like:
	<USER> <host>=NOPASSWD:<command>		{{highlight\|lang=text\|code=
			<USER> <host>=NOPASSWD:<command>
			}}


	{{Navbox Linux}}[[Category:Linux]]		{{Navbox Linux}}[[Category:Linux]]

2019-09-12T03:35:49Z

sudo: sorry, you must have a tty to run sudo: WP content http://leo.steamr.com/2011/05/sudo-sorry-you-must-have-a-tty-to-run-sudo/

← Older revision		Revision as of 03:35, 12 September 2019
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	=== sudo: sorry, you must have a tty to run sudo ===		=== sudo: sorry, you must have a tty to run sudo ===
			If you get the error while trying to run {{code\|sudo}} through a script or a non-interactive shell:
			{{highlight\|lang=text\|code=
			sudo: sorry, you must have a tty to run sudo
			}}

			Ensure that you do not require a TTY in your {{code\|/etc/sudoers}} configuration. Either comment out or use {{code\|!requiretty}}.
			{{highlight\|lang=text\|code=
			## In /etc/sudoers
			## From
			Defaults requiretty

			## To one of:
			Defaults !requiretty
			# Defaults requiretty
			}}

	~~Ensure that you do not require tty. Either comment out or use !requiretty .~~		'''A one-liner to fix this:'''
	{{highlight\|lang=terminal\|code=		{{highlight\|lang=terminal\|code=
	# ~~cat~~ /etc/sudoers		# sed -i s'/Defaults requiretty/#Defaults requiretty'/g /etc/sudoers
	~~Defaults ! requiretty~~
	}}		}}

	If you just want to run a command as another user, you could also try {{code\|su}} instead. For example:		As a side note, if you just want to run a command as another user, you could also try {{code\|su}} instead. For example:
	{{highlight\|lang=terminal\|code=		{{highlight\|lang=terminal\|code=
	# su $username -c 'whoami'		# su $username -c 'whoami'

2019-09-01T06:22:23Z

Text replacement - "Category:Linux{{Navbox Linux}}" to "{{Navbox Linux}}Category:Linux"

2019-09-01T05:11:08Z

Text replacement - "{{Navbox Linux}}{{Navbox Linux}}" to "{{Navbox Linux}}"

← Older revision		Revision as of 05:11, 1 September 2019
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	[[Category:Linux]]~~{{Navbox Linux}}~~{{Navbox Linux}}		[[Category:Linux]]{{Navbox Linux}}

2019-09-01T05:08:33Z

Text replacement - "Category:Linux" to "Category:Linux{{Navbox Linux}}"

← Older revision		Revision as of 05:08, 1 September 2019
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	[[Category:Linux]]{{Navbox Linux}}		[[Category:Linux]]{{Navbox Linux}}{{Navbox Linux}}

2019-09-01T04:46:13Z

Text replacement - "{{Navbox Linux}} {{Navbox Linux}}" to "{{Navbox Linux}}"