FreeBSD Network Backup Thing from Scrap - Revision history

320x200: /* Monitor disk space on the backup disk */

2018-07-14T22:48:18Z

Monitor disk space on the backup disk

← Older revision		Revision as of 22:48, 14 July 2018
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	* Turn that into a daily cron job with <code>crontab -e</code> and add the following line:		* Turn that into a daily cron job with <code>crontab -e</code> and add the following line:
	0 13 * * * ~/bin/disk-space-alert.sh		0 13 * * * ~/bin/disk-space-alert.sh

			=== Swap file for the rainy days ===
			The RPi1 does not have much RAM. That's enough for BorgBackup, but can be tight if it's used simultaneously by different clients. To be on the safe side and avoid the kernel to start killing processes, we can create a small 512MB swap file for emergencies.

			* as root
			dd if=/dev/zero of=/sendhelp/swap bs=1m count=512
			chmod 0600 /sendhelp/swap
			* Edit <code>/etc/fstab</code> so that:
			md99 none swap sw,file=/sendhelp/swap,late 0 0
			* If you dont' want to reboot and start swap away:
			swapon -aL

2018-07-14T22:08:00Z

Monitor disk space on the backup disk

← Older revision		Revision as of 22:08, 14 July 2018
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	* <code>ssh</code> as the regular user		* <code>ssh</code> as the regular user
	ssh freebsd@192.168.1.99		ssh freebsd@192.168.1.XXX
	* If not done already make a small dir for your scripts and binaries		* If not done already make a small dir for your scripts and binaries
	mkdir bin		mkdir bin

2018-07-14T22:04:08Z

Monitor disk space on the backup disk

← Older revision		Revision as of 22:04, 14 July 2018
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	EOF		EOF
	fi		fi
			* Turn that into a daily cron job with <code>crontab -e</code> and add the following line:
			0 13 * * * ~/bin/disk-space-alert.sh

2018-07-14T21:59:38Z

Monitor disk space on the backup disk

← Older revision		Revision as of 21:59, 14 July 2018
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	#!/bin/sh		#!/bin/sh
	CURRENT=$(df /sendhelp \| grep /sendhelp \| awk '{print $5}' \| sed 's/%//g')		CURRENT=$(df /sendhelp \| grep /sendhelp \| awk '{print $5}' \| sed 's/%//g')
	THRESHOLD=5		THRESHOLD=90

	if [ "${CURRENT}" -gt "${THRESHOLD}" ]		if [ "${CURRENT}" -gt "${THRESHOLD}" ]

2018-07-14T21:59:19Z

Monitor disk space on the backup disk

← Older revision		Revision as of 21:59, 14 July 2018
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	* tweak the following script and put it in <code>~/bin/disk-space-alert.sh</code>		* tweak the following script and put it in <code>~/bin/disk-space-alert.sh</code>
	#!/bin/sh		#!/bin/sh

	CURRENT=$(df /sendhelp \| grep /sendhelp \| awk '{print $5}' \| sed 's/%//g')		CURRENT=$(df /sendhelp \| grep /sendhelp \| awk '{print $5}' \| sed 's/%//g')
	THRESHOLD=5		THRESHOLD=5
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	if [ "${CURRENT}" -gt "${THRESHOLD}" ]		if [ "${CURRENT}" -gt "${THRESHOLD}" ]
	then		then
	/usr/sbin/sendmail ~~aymeric~~@~~bleu255~~.~~com~~ <<EOF		/usr/sbin/sendmail some@where.nice <<EOF
	Subject: The Vault is running out of space		Subject: The Vault is running out of space
	From: no-reply@vault.local		From: no-reply@vault.local

2018-07-14T21:58:42Z

Monitor disk space on the backup disk

← Older revision		Revision as of 21:58, 14 July 2018
Line 173:		Line 173:

	=== Monitor disk space on the backup disk ===		=== Monitor disk space on the backup disk ===
	BorgBackup will not be happy (and as a consequence you too) if space gets tight on the backup disk. This daily check will let you know by email if more than 90% of the disk is used.		BorgBackup will not be happy (and as a consequence you too) if space gets tight on the backup disk. This daily check will let you know by email if more than 90% of the disk is used (requires the email output recipe above to work).

	* ssh as the regular user		* <code>ssh</code> as the regular user
	ssh freebsd@192.168.1.99		ssh freebsd@192.168.1.99
	* If not done already make a small dir for your scripts and binaries		* If not done already make a small dir for your scripts and binaries

2018-07-14T21:57:47Z

Monitor the health of backup disk

← Older revision		Revision as of 21:57, 14 July 2018
Line 171:		Line 171:
	* Copy sample config file		* Copy sample config file
	cp /usr/local/etc/smartd.conf.sample /usr/local/etc/smartd.conf		cp /usr/local/etc/smartd.conf.sample /usr/local/etc/smartd.conf

			=== Monitor disk space on the backup disk ===
			BorgBackup will not be happy (and as a consequence you too) if space gets tight on the backup disk. This daily check will let you know by email if more than 90% of the disk is used.

			* ssh as the regular user
			ssh freebsd@192.168.1.99
			* If not done already make a small dir for your scripts and binaries
			mkdir bin
			* tweak the following script and put it in <code>~/bin/disk-space-alert.sh</code>
			#!/bin/sh

			CURRENT=$(df /sendhelp \| grep /sendhelp \| awk '{print $5}' \| sed 's/%//g')
			THRESHOLD=5

			if [ "${CURRENT}" -gt "${THRESHOLD}" ]
			then
			/usr/sbin/sendmail aymeric@bleu255.com <<EOF
			Subject: The Vault is running out of space
			From: no-reply@vault.local

			/sendhelp is full at ${CURRENT}%.

			THIS IS FINE.
			EOF
			fi

2018-07-14T19:32:57Z

Outgoing email

← Older revision		Revision as of 19:32, 14 July 2018
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	AuthUser=username		AuthUser=username
	AuthPass=password		AuthPass=password
	~~FromLineOverride=YES~~
	* '''Note:''' you may need to adjust the settings above depending on your server config		* '''Note:''' you may need to adjust the settings above depending on your server config
	* Change root's default <code>Full name:</code> to "root from the Vault", or whatever, with:		* Change root's default <code>Full name:</code> to "root from the Vault", or whatever, with:

2018-07-13T10:42:40Z

Outgoing email

← Older revision		Revision as of 10:42, 13 July 2018
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	chpass		chpass
	* Test that you can send emails		* Test that you can send emails
	echo "Subject: this is a test from ~~sat~~" \| /usr/sbin/sendmail -v some@where.nice		echo "Subject: this is a test from the vault" \| /usr/sbin/sendmail -v some@where.nice

	=== Monitor the health of backup disk ===		=== Monitor the health of backup disk ===

2018-07-13T10:39:14Z

← Older revision		Revision as of 10:39, 13 July 2018
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	alias borg-space='ssh freebsd@192.168.1.XXX df -h \| grep -e "sendhelp\\|File" --color=no'		alias borg-space='ssh freebsd@192.168.1.XXX df -h \| grep -e "sendhelp\\|File" --color=no'

	== ~~Fine tuning~~ ==		== PRO Tips ==
	=== Outgoing email ===		=== Outgoing email ===
	Useful for various alerts and whatnot. We will just need to send emails to an existing external mail server, no need to run a full MTA on the RPI1. The following instructions make the assumption that you already have a working email server that you can use (from your ISP, a [[Postfix_Relay\|relay]], etc).		Useful for various alerts and whatnot. We will just need to send emails to an existing external mail server, no need to run a full MTA on the RPI1. The following instructions make the assumption that you already have a working email server that you can use (from your ISP, a [[Postfix_Relay\|relay]], etc).