Turns out you need a powered USB hub, otherwise the Pi 3 won’t see the Phidgets 8/8/8 board. The setup: Pi3 Phidgets 8/8/8 board ( https://www.phidgets.com/?tier=3&prodid=16 ) Phidgets 1117 voltage sensor https://www.phidgets.com/?&prodid=88 Rosewill self-powered 7 port USB hub https://www.newegg.com/rosewill-rhub-300-usb/p/N82E16817182057 Once a self-powered USB hub is provided, the Phidgets IO board is detected: Setting up the Pi: sudo su apt-get ..
#!/bin/bash # SET THIS! This is the URL to your large file that # you’re downloading over and over again URL=http://192.168.0.10/test/a # use wget to grab the file, redirect to dev null: COUNTER=0 TOTAL=0 while true; do GB=$((TOTAL >> 30)) MB=$((TOTAL >> 20)) echo “Run #$COUNTER at `date` Total downloaded $MB MB, $GB GB” wget ..
sudo su # enable zabbix on system boot systemctl enable zabbix-server.service # stop the server systemctl stop zabbix-server # check status systemctl status zabbix-server.service # start it systemctl stop zabbix-server # check status systemctl status zabbix-server.service # disable SELinux sestatus sudo setenforce 0 sudo shutdown -r now sudo su sestatus # iptables yum install iptables-services ..
# Install Xen: sudo apt-get update sudo apt-get upgrade sudo apt-get install xen-system # Edit interfaces sudo nano /etc/network/interfaces # and add the xen bridge: # This file describes the network interfaces available on your system # and how to activate them. For more information, see interfaces(5). source /etc/network/interfaces.d/* # The loopback network interface auto ..
systemctl restart system..
#!/bin/sh LOG=/tmp/syncSvn.log SOURCE=/home/svn/dev/ DESTINATION=/mnt/d3/myd3/home/svn/dev EMAIL=root@localhost START=$(date +%s) echo “” > $LOG echo “Start ” >> $LOG echo `date` >> $LOG echo “Now beginning sync $SOURCE to $DESTINATION ” >> $LOG rsync –verbose –archive –recursive –delete-during –human-readable –progress –itemize-changes $SOURCE $DESTINATION >> $LOG echo “Finished sync $SOURCE to $DESTINATION ” >> $LOG echo “Checking SOURCE $SOURCE ..
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# install it sudo apt install squid # back up config sudo cp /etc/squid/squid.conf /etc/squid/squid.conf.original sudo nano /etc/squid/squid.conf # edit stuff per https://ubuntu.com/server/docs/proxy-servers-squid # or leave default port 3128 Example config: acl SSL_ports port 443 acl Safe_ports port 80 # http acl Safe_ports port 21 # ftp acl Safe_ports port 443 # https acl Safe_ports ..
First set up Nginx to recognize your domain, etc. mydomain.example.com , assume this server is called gateway, so gateway.mydomain.example.com sudo nano /etc/hosts 127.0.0.1 localhost ::1 localhost ip6-localhost ip6-loopback ff02::1 ip6-allnodes ff02::2 ip6-allrouters 127.0.1.1 mydomain.example.com gateway gateway.mydomain.example.com Install postfix: sudo apt-get update; sudo apt-get install postfix Internest Site → gateway.mydomain.example.com → # Update your /etc/mailname file with your ..
# How to install and set up Nagios # read how-to: http://nagios.sourceforge.net/docs/3_0/quickstart.html sudo apt-get install apache2 sudo apt-get install libapache2-mod-php5 sudo apt-get install build-essential # get data about your operating system: uname -a lsb_release -a # With Ubuntu 6.10, install the gd2 library with this command: # sudo apt-get install libgd2-dev # With Ubuntu 7.10, ..
In this example, we have a directory with a lot of files which have no extension. We need to add “.jpg” at the end of each file name. We’re using Git Bash in Windows because we can do it in 1 line. First, do this so that files with spaces in the name are not ..
# go to your home dir and download it cd ~ wget http://apache.cs.utah.edu/tomcat/tomcat-9/v9.0.22/bin/apache-tomcat-9.0.22.tar.gz tar xzvf apache-tomcat-9.0.22.tar.gz # make destination dir sudo mkdir /opt/tomcat # move unpackaged dir from home to /opt sudo mv ~/apache-tomcat-9.0.22 /opt/tomcat/ # create symlink to current so we only use /opt/tomcat/current in the future sudo ln -s /opt/tomcat/apache-tomcat-9.0.22/ /opt/tomcat/current # create ..
Listed at: https://packages.debian.org/stretch/firmware-misc-nonfree Need: firmware-misc-nonfree_20161130-5_all.deb see: https://packages.debian.org/stretch/all/firmware-misc-nonfree/download Get the deb file from: http://ftp.us.debian.org/debian/pool/non-free/f/firmware-nonfree/firmware-misc-nonfree_20161130-5_all.deb Copy firmware-misc-nonfree_20161130-5_all.deb to a USB stick. On the linux box: Find your USB stick: sudo fdisk -l In my case it’s /dev/sdf1 Mount it and run the file mkdir /mnt/myusb mount /dev/sdf1 /mnt/myusb cp /mnt/myusb/firmware-misc-nonfree_20161130-5_all.deb /root cd /root deb -i firmware-misc-nonfree_20161130-5_all.deb Find ..
The WordPress “Health Status” says it’s missing some plugin: # check the PHP version that we have running: root@server:/opt/web/mysite.com# php –version PHP 7.4.12 (cli) (built: Nov 3 2025 14:32:41) ( NTS ) Find your version. And then: # get what’s missing for our PHP version: apt-get install php7.4-curl apt-get install php7.4-mbstring apt-get install php..
# install apt install php7.3-fpm apt install nginx # you need the mysql libraries to connect to mysqli(host, user, pass, instance) apt install php7.3-mysql # edit nginx to use php nano /etc/nginx/sites-enabled/default # Replace this: location / { # First attempt to serve request as file, then # as directory, then fall back to displaying ..
Keycloak is an open source software product to allow single sign-on with Identity and Access Management aimed at modern applications and services. As of March 2018 this WildFly community project is under the stewardship of Red Hat who use it as the upstream project for their RH-SSO product. # install java sudo apt install -y ..
sudo apt install python3.8 -y sudo apt install xdg-utils wget xz-utils -y sudo apt install libnss3 -y sudo apt-get install xorg openbox -y sudo apt-get install ubuntu-desktop -y mkdir ~/tmp cd ~/tmp wget https://download.calibre-ebook.com/4.17.0/calibre-4.17.0-x86_64.txz sudo mkdir -p /opt/calibre sudo rm -rf /opt/calibre/* sudo tar xvf ~/tmp/calibre-4.17.0-x86_64.txz -C /opt/calibre sudo /opt/calibre/calibre_p..
If you don’t have java, install it: # install java sudo apt-get install openjdk-7-jdk java -version Download it: cd ~ mkdir ~/tmp/ cd ~/tmp/ # get it, see https://tomcat.apache.org/download-90.cgi for more links wget http://mirror.reverse.net/pub/apache/tomcat/tomcat-9/v9.0.29/bin/apache-tomcat-9.0.29.tar.gz # create destination sudo mkdir /opt/tomcat sudo chown $USER:$USER /opt/tomcat # unzip it tar xzvf apache-tomcat-9.0.20.tar.gz –directory /opt/tomcat # make a ..
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Example run: root@ox:/etc/init.d# ./oracle-xe-18c configure /bin/df: unrecognized option ‘–direct’ Try ‘/bin/df –help’ for more information. Specify a password to be used for database accounts. Oracle recommends that the password entered should be at least 8 characters in length, contain at least 1 uppercase character, 1 lower case character and 1 digit [0-9]. Note that the ..
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# view all queued up mail sudo postqueue -p # delete all queued up mail sudo postsuper -d ALL # add this to /etc/postfix/main.cf smtpd_sender_restrictions = reject_unknown_sender_domain smtpd_helo_restrictions = reject_unknown_helo_hostname # optionally, run this so that it doesn’t complain about old files sudo postmap /etc/postfix/virtual # restart mail sudo /etc/init.d/postfix restart # watch log sudo ..
cd /my/directory # remove files that are older than 7 days find . -maxdepth 1 -mtime +7 -exec rm..
The board: The board I worked with is a 16 channel relay board: https://www.sainsmart.com/products/imatic-rj45-ethernet-wi-fi-control-board-with-integrated-16-ch-dc-12v-relay I believe this process should also work with the 8 channel relay board: https://www.sainsmart.com/products/imatic-rj45-tcp-ip-remote-control-board-with-8-ch-relay The relay board has this ethernet card: The problem: The problem is that the board comes pre-programmed with the IP 192.168.1.4. The solution: The following steps show you how ..
he problem: “certbot renew” doesn’t work as nginx forwards to another service using proxy_pass The error looks something like this: Processing /etc/letsencrypt/renewal/wiki.lupsha.com.conf ——————————————————————————- Cert is due for renewal, auto-renewing… Plugins selected: Authenticator webroot, Installer None Renewing an existing certificate Performing the following challenges: http-01 challenge for wiki.lupsha.com Waiting for verification… Cleaning up challenges Attempting to ..
I recommend this: https://github.com/cubieplayer/Cubian/wiki/Install-Cubian Grab the HDMI image from http://cubian.org/downloads/ , like this one: http://cubieplayer.github.io/static_files/torrents/Cubian-nano-x1-a20-cubietruck-hdmi.img.7z.torrent Download it. Unzip it. Burn the .img file to a USB drive using Win32DiskImager: put it in the cubietruck, boot with it go through the setup, advanced, enable ssh server, save, exit Do everything here as root sudo su Check your version uname -a ..
# Get the UUID of the VM by specifying the name, ex: “112-mail” UUID=`xe vm-list name-label=”112-mail” –minimal` # set the VM to autostart: xe vm-param-set uuid=$UUID other-config:auto_poweron=true Check that it actually worked: Restart dom 0 (main server), check that VM starts up auto..
how to start a VM by passing the VM name #!/bin/bash if [ -z “$1” ]; then echo “syntax: startVm.sh VM_NAME” exit 1 fi VMNAME=$1 echo “starting vm: $VMNAME now” xe vm-start vm=”$VMNAME” 2>&1 How to start all available VMs #!/bin/bash ALL=`xe vm-list power-state=halted –minimal` for UUID in $(echo $ALL | sed “s/,/ /g”) do ..
Scripting the creation of VMs will save you a ton of hours, and it’s quite awesome. This works best if you have an Ubuntu UNATTENDED install ISO created, which installs the whole OS without any input. Example script run, one-liner: ./createBox2021.sh k1 1 10 2 86:a9:a3:b0:99:01 Or with menu selections: You’ll need your install ISO ..
I used this guide: https://github.com/xcp-ng/xcp/wiki/Create-a-local-ISO-repository On the xen DOM0, create a place to store all ISOs, max 18gigs of space will be available. Then: Created: It shows up in xcp-ng center: Then, use git bash scp or FileZilla to sftp the files over to the dom0 /opt/mylocalisos directory, so that xen can ..
Setup: sudo su echo “up” > /root/nasstatus.txt Mount point check is a simple empty file sitting at: /mnt/nas/file.txt If this file goes missing, we call speak.sh to say that the NAS is down. nano /root/checkSamba.sh #!/bin/bash FILE=/mnt/nas/file.txt STATUSFILE=/root/nasstatus.txt # keep track of last status NASDOWN=$(cat “$STATUSFILE”) if [ ! -f $FILE ]; then nohup /opt/settings/scripts/speak.sh ..
As the user (don’t need to be root). # one time setup: echo “down” > xenstatus.txt checkXenSsh.sh: #!/bin/bash # one time setup: echo “down” > xenstatus.txt STATUSFILE=/home/pi/xenstatus.txt LASTSTATUS=$(cat “$STATUSFILE”) # check connection ssh -q root@xen.florida exit # status of ssh is stored in $? if [ `echo $?` = 255 ]; then nohup /opt/settings/scripts/speak.sh “zen ..
Using Ubuntu 18. Calling this service “shutdown” sudo nano /etc/systemd/system/shutdown.service Contents. Include the full path to your down.sh shell script. In this example, it’s /opt/settings/scripts/down.sh, and it calls a service using curl which then speaks to a speaker that the server is shutting down. [Unit] Description=My shutdown [Service] Type=oneshot RemainAfterExit=true ExecStop=/opt/settings/scripts/down.sh [Install] WantedBy=multi-user.target Enable the ..
First the samba share must exist. Then, go to the linux box, and: Install cifs utils which lets you mount samba shares: Create a credentials file with the login/password to the samba share, and store this credentials file in /etc/ nano /etc/nas.credentials Enter your network share login and password in this nas.credentials file: username=mysambauser password=mysecretpassword ..
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Boot up and wait for the PERC card which manages your PowerVault drives, press Control R Verify all drives show up, and create an array, ex: RAID 10 Let it build the array… wait 24 hours Boot into XCP-NG Open a shell on the xcp-ng server Find your disk In this case, it’s /dev/sdb Create ..
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Based on this initial setup: Example: on server k5.florida, which we’re linking to k6.florida: (change “incoming!password” and “outgoing!password”) with contents: and then do this on the k6 server to allow connections from the k5 server: Every time you make a change you need to restart th..
Create these 2 files because it won’t start without them: sudo touch /etc/inspircd/inspircd.motd sudo touch /etc/inspircd/inspircd.rules Edit the config: Simplified config which works: (also change: “chageme” entries and “mynamehere” entries) More setup: and make it auto start on boot: with contents: and watch the log: Also see linking servers to one another, ex: ..
Configuration: ./configure <<< “yes /home/ircuser/inspircd-3.8.1/run yes /home/ircuser/inspircd-3.8.1/run/bin yes /home/ircuser/inspircd-3.8.1/run/conf yes /home/ircuser/inspircd-3.8.1/run/data yes /home/ircuser/inspircd-3.8.1/run/logs yes /home/ircuser/inspircd-3.8.1/run/manuals yes /home/ircuser/inspircd-3.8.1/run/modules yes /home/ircuser/inspircd-3.8.1/run yes ” Mak..
Edit the config file, ex: we are connecting to server k5.florida, chat net is zombienet, and port is 6667. You only need to change the servers entry: Example contents: Start irssi from your user account: irssi Example commands to connect to the “zombienet” network entered above under servers: /NETWORK LIST /CONNECT zombienet /JOIN #h..
Turning freenas server OFF from a Raspberry Pi. On the pi server: On the pi server: Now logged into the freenas server: Exit the freenas box: Back on the pi, tell the freenas server to shut down The box should ..
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Samba in FreeNAS 11.2 used to work, you could connect from older PCs to the shares, but now that’s broken. The hack: you can create a new jail with the sole purpose of running samba to access your zfs pools. In the example below, I called my jail “mysambajail.florida” First, create a new jail. Start it ..
Set up database: Import from file: Or: you can install pv to watch the progress: If you get this er..
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