Linux - Revision history

Joe at 14:50, 21 June 2022

2022-06-21T14:50:32Z

Joe at 19:46, 13 June 2022

2022-06-13T19:46:46Z

Joe at 17:12, 21 March 2019

2019-03-21T17:12:54Z

Joe at 13:00, 5 October 2018

2018-10-05T13:00:26Z

Joe at 14:00, 8 August 2018

2018-08-08T14:00:50Z

Joe at 19:15, 12 July 2018

2018-07-12T19:15:21Z

Joe at 14:07, 24 April 2018

2018-04-24T14:07:54Z

Joe at 16:49, 5 January 2018

2018-01-05T16:49:05Z

Joe at 17:04, 29 December 2017

2017-12-29T17:04:12Z

Joe at 13:31, 28 December 2017

2017-12-28T13:31:29Z

← Older revision		Revision as of 14:50, 21 June 2022
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	'''Bash Keyboard Shortcuts''' - http://ss64.com/bash/syntax-keyboard.html You'll be glad you knew them.		'''Bash Keyboard Shortcuts''' - http://ss64.com/bash/syntax-keyboard.html You'll be glad you knew them.
		+
		+	'''The Beauty of Unix Pipelines''' - https://prithu.dev/posts/unix-pipeline/ The beauty of Unix pipelines

	'''Best Practices for UNIX chroot() operations''' - http://unixwiz.net/techtips/chroot-practices.html Systems exposed to the internet are heavily challenged to keep the bad guys out, and keeping up with the latest security patches is not always easy. So, the wise admin will attempt to institute systemic steps to limit the damage should a compromise occur, and one excellent method is the use of a chroot() jail.		'''Best Practices for UNIX chroot() operations''' - http://unixwiz.net/techtips/chroot-practices.html Systems exposed to the internet are heavily challenged to keep the bad guys out, and keeping up with the latest security patches is not always easy. So, the wise admin will attempt to institute systemic steps to limit the damage should a compromise occur, and one excellent method is the use of a chroot() jail.

← Older revision		Revision as of 19:46, 13 June 2022
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	'''Icinga Blog''' - https://www.icinga.com/blog/ The official blog for Icinga2 monitoring software.		'''Icinga Blog''' - https://www.icinga.com/blog/ The official blog for Icinga2 monitoring software.
		+
		+	'''Kernel Crash Dump Guide RHEL 7''' - https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/kernel_administration_guide/kernel_crash_dump_guide Chapter 7. Kernel crash dump guide Red Hat Enterprise Linux 7 \| Red Hat Customer Portal

	'''Linux eMail Server - Mail Transfer Agent (MTA) software''' - http://www.yolinux.com/TUTORIALS/LinuxTutorialMailMTA.html Internet mail is sent from the email client to the email server which routes it to the intended destination which will also be an email server. The protocol by which the email servers communicate is called SMTP (Simple Mail Transfer Protocol) and the email server software is known as the MTA or Mail Transfer Agent. This tutorial lists the popular MTA eMail server programs used, basic Sendmail email server configuration as well as Postfix email server configuration. Also listed are Mailing List programs and the RFC's (Request For Comments) on which the internet email standards are currently or eventually based.		'''Linux eMail Server - Mail Transfer Agent (MTA) software''' - http://www.yolinux.com/TUTORIALS/LinuxTutorialMailMTA.html Internet mail is sent from the email client to the email server which routes it to the intended destination which will also be an email server. The protocol by which the email servers communicate is called SMTP (Simple Mail Transfer Protocol) and the email server software is known as the MTA or Mail Transfer Agent. This tutorial lists the popular MTA eMail server programs used, basic Sendmail email server configuration as well as Postfix email server configuration. Also listed are Mailing List programs and the RFC's (Request For Comments) on which the internet email standards are currently or eventually based.

@@ Line 64: / Line 64: @@
 '''Some VMware images''' - http://www.thoughtpolice.co.uk/vmware/ If you wish to try out several linux flavors without interruption to your current OS before you really install it, VMWare plus these images will do just that and bypass the pain of installing them in VMWare too!
 '''Using the Watchdog Timer in Linux''' - https://www.jann.cc/2013/02/02/linux_watchdog.html Covers use of the linux watchdog timer.
 '''What is the difference between test, [ and [[ ?''' - http://mywiki.wooledge.org/BashFAQ/031 [ ("test" command) and [[ ("new test" command) are used to evaluate expressions. [[ works only in Bash, Zsh and the Korn shell, and is more powerful; [ and test are available in POSIX shells. Here are some examples.

← Older revision		Revision as of 13:00, 5 October 2018
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	'''Regular Expressions .info''' - http://www.regular-expressions.info/ A regular expression (regex or regexp for short) is a special text string for describing a search pattern.		'''Regular Expressions .info''' - http://www.regular-expressions.info/ A regular expression (regex or regexp for short) is a special text string for describing a search pattern.
		+
		+	'''RPM How To''' - http://www.tldp.org/HOWTO/RPM-HOWTO/build-it.html Detailed steps on creating RPM files.

	'''Rubular''' - http://rubular.com/ Rubular is a Ruby-based regular expression editor. It's a handy way to test regular expressions as you write them.		'''Rubular''' - http://rubular.com/ Rubular is a Ruby-based regular expression editor. It's a handy way to test regular expressions as you write them.

← Older revision		Revision as of 14:00, 8 August 2018
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	'''Command Line Tutorials - Sed & Awk''' - https://quickleft.com/blog/command-line-tutorials-sed-awk/ We're going to take a look at two very important commands for your toolbox – "sed" and "awk". These two commands are pretty powerful, but as a result, their learning curve can be pretty steep. I'll provide you an outline to get you up to speed on sed and awk, but there's more to these commands than I have room here to cover. Fortunately, there's a ton of information on the internet about these commands, and I encourage you to read up on them once we're done.		'''Command Line Tutorials - Sed & Awk''' - https://quickleft.com/blog/command-line-tutorials-sed-awk/ We're going to take a look at two very important commands for your toolbox – "sed" and "awk". These two commands are pretty powerful, but as a result, their learning curve can be pretty steep. I'll provide you an outline to get you up to speed on sed and awk, but there's more to these commands than I have room here to cover. Fortunately, there's a ton of information on the internet about these commands, and I encourage you to read up on them once we're done.
		+
		+	'''Change runlevels in RHEL 7, How do I''' - https://access.redhat.com/solutions/2142121 This article describes the way runlevels are handled is updated in RHEL 7.

	'''Crontab - Quick Reference''' - http://www.adminschoice.com/crontab-quick-reference "cron" is a Unix, solaris, Linux utility that allows tasks to be automatically run in the background at regular intervals by the cron daemon.		'''Crontab - Quick Reference''' - http://www.adminschoice.com/crontab-quick-reference "cron" is a Unix, solaris, Linux utility that allows tasks to be automatically run in the background at regular intervals by the cron daemon.

← Older revision		Revision as of 19:15, 12 July 2018
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	'''Linux Newbie Guide by Stan, Peter and Marie Klima''' - unixguide.net/linux/ A great resource for those just starting out with Linux. LNAG and LAME have both helped me with some basic concepts in getting started with linux.		'''Linux Newbie Guide by Stan, Peter and Marie Klima''' - unixguide.net/linux/ A great resource for those just starting out with Linux. LNAG and LAME have both helped me with some basic concepts in getting started with linux.
		+
		+	'''Performing Math Calculation in Bash''' - https://www.shell-tips.com/2010/06/14/performing-math-calculation-in-bash/ I use math in bash scripts a lot, from simple crontab reports to Icinga2 monitoring plugins… Here is few small examples on how to do some math in Bash with integers or float. Especially since math in bash might surprise you if you haven't already read this.

	'''Procmail Strategies Against Spam''' - http://pm-lib.sourceforge.net/README.html Spam is a problem. This document contains a detailed analysis of various ways that Procmail can be used to combat spam.		'''Procmail Strategies Against Spam''' - http://pm-lib.sourceforge.net/README.html Spam is a problem. This document contains a detailed analysis of various ways that Procmail can be used to combat spam.

← Older revision		Revision as of 14:07, 24 April 2018
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	'''Command Line Tutorials - Sed & Awk''' - https://quickleft.com/blog/command-line-tutorials-sed-awk/ We're going to take a look at two very important commands for your toolbox – "sed" and "awk". These two commands are pretty powerful, but as a result, their learning curve can be pretty steep. I'll provide you an outline to get you up to speed on sed and awk, but there's more to these commands than I have room here to cover. Fortunately, there's a ton of information on the internet about these commands, and I encourage you to read up on them once we're done.		'''Command Line Tutorials - Sed & Awk''' - https://quickleft.com/blog/command-line-tutorials-sed-awk/ We're going to take a look at two very important commands for your toolbox – "sed" and "awk". These two commands are pretty powerful, but as a result, their learning curve can be pretty steep. I'll provide you an outline to get you up to speed on sed and awk, but there's more to these commands than I have room here to cover. Fortunately, there's a ton of information on the internet about these commands, and I encourage you to read up on them once we're done.
		+
		+	'''Crontab - Quick Reference''' - http://www.adminschoice.com/crontab-quick-reference "cron" is a Unix, solaris, Linux utility that allows tasks to be automatically run in the background at regular intervals by the cron daemon.

	'''CTRL-ALT-DELETE Behavior Modification''' - http://www.cyberciti.biz/tips/linux-disable-the-ctrl-alt-del-shutdown.html Keep linux from rebooting in response to the three finger salute.		'''CTRL-ALT-DELETE Behavior Modification''' - http://www.cyberciti.biz/tips/linux-disable-the-ctrl-alt-del-shutdown.html Keep linux from rebooting in response to the three finger salute.

← Older revision		Revision as of 16:49, 5 January 2018
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	'''Sed''' - http://www.panix.com/~elflord/unix/sed.html This tutorial is meant as a brief introductory guide to sed that will help give the beginner a solid foundation regarding how sed works. It's worth noting that the tutorial also omits several commands, and will not bring you to sed enlightenment in itself.		'''Sed''' - http://www.panix.com/~elflord/unix/sed.html This tutorial is meant as a brief introductory guide to sed that will help give the beginner a solid foundation regarding how sed works. It's worth noting that the tutorial also omits several commands, and will not bring you to sed enlightenment in itself.
		+
		+	'''Server Lab Linux Pages''' - http://www.serverlab.ca/category/tutorials/linux/administration-linux/ Server Lab has many articles covering Linux administration, database, network services, storage and file systems, and web servers.

	'''Shellinabox''' - https://code.google.com/archive/p/shellinabox/ Shell In A Box implements a web server that can export arbitrary command line tools to a web based terminal emulator. This emulator is accessible to any JavaScript and CSS enabled web browser and does not require any additional browser plugins.		'''Shellinabox''' - https://code.google.com/archive/p/shellinabox/ Shell In A Box implements a web server that can export arbitrary command line tools to a web based terminal emulator. This emulator is accessible to any JavaScript and CSS enabled web browser and does not require any additional browser plugins.

← Older revision		Revision as of 17:04, 29 December 2017
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	'''Some VMware images''' - http://www.thoughtpolice.co.uk/vmware/ If you wish to try out several linux flavors without interruption to your current OS before you really install it, VMWare plus these images will do just that and bypass the pain of installing them in VMWare too!		'''Some VMware images''' - http://www.thoughtpolice.co.uk/vmware/ If you wish to try out several linux flavors without interruption to your current OS before you really install it, VMWare plus these images will do just that and bypass the pain of installing them in VMWare too!
		+
		+	'''Using the Watchdog Timer in Linux''' - https://www.jann.cc/2013/02/02/linux_watchdog.html Covers use of the linux watchdog timer.

	'''What is the difference between test, [ and [[ ?''' - http://mywiki.wooledge.org/BashFAQ/031 [ ("test" command) and [[ ("new test" command) are used to evaluate expressions. [[ works only in Bash, Zsh and the Korn shell, and is more powerful; [ and test are available in POSIX shells. Here are some examples.		'''What is the difference between test, [ and [[ ?''' - http://mywiki.wooledge.org/BashFAQ/031 [ ("test" command) and [[ ("new test" command) are used to evaluate expressions. [[ works only in Bash, Zsh and the Korn shell, and is more powerful; [ and test are available in POSIX shells. Here are some examples.

@@ Line 19: / Line 19: @@
 '''Best Practices for UNIX chroot() operations''' - http://unixwiz.net/techtips/chroot-practices.html Systems exposed to the internet are heavily challenged to keep the bad guys out, and keeping up with the latest security patches is not always easy. So, the wise admin will attempt to institute systemic steps to limit the damage should a compromise occur, and one excellent method is the use of a chroot() jail.
-'''Command Line Tutorials - Sed & Awk''' - We're going to take a look at two very important commands for your toolbox – "sed" and "awk". These two commands are pretty powerful, but as a result, their learning curve can be pretty steep. I'll provide you an outline to get you up to speed on sed and awk, but there's more to these commands than I have room here to cover. Fortunately, there's a ton of information on the internet about these commands, and I encourage you to read up on them once we're done.
+'''Command Line Tutorials - Sed & Awk''' - https://quickleft.com/blog/command-line-tutorials-sed-awk/ We're going to take a look at two very important commands for your toolbox – "sed" and "awk". These two commands are pretty powerful, but as a result, their learning curve can be pretty steep. I'll provide you an outline to get you up to speed on sed and awk, but there's more to these commands than I have room here to cover. Fortunately, there's a ton of information on the internet about these commands, and I encourage you to read up on them once we're done.
 '''CTRL-ALT-DELETE Behavior Modification''' - http://www.cyberciti.biz/tips/linux-disable-the-ctrl-alt-del-shutdown.html Keep linux from rebooting in response to the three finger salute.