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>'''[[http://Jonathan-Ferguson.au/|Internet Site: http://Jonathan-Ferguson.au/]]''' <
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>'''[[https://launchpad.net/~jonathan-ferguson|Launchpad: jonathan-ferguson]]''' <
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>'''[[http://au.linkedin.com/in/fergusonjonathanferguson|Linkedin: Jonathan Ferguson]]''' <
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>'''My Intellectual Property:''' <
> {{attachment:IconsPage/iconCircleSmall.png}} [[https://wiki.edubuntu.org/JonathanFerguson/EthernetInterconnections|Ethernet Interconnections]] <
> {{attachment:IconsPage/iconCircleSmall.png}} [[https://wiki.edubuntu.org/JonathanFerguson/Musings|Musings]] <
> {{attachment:IconsPage/terminal.png}} [[http://congruent-networks.au/Jonathan-Ferguson/Quick-Quagga|./Quick-Quagga]] <
> {{attachment:IconsPage/terminal.png}} [[http://congruent-networks.au/Jonathan-Ferguson/Quick-Quagga-802.11-Interfaces|./Quick-Quagga-802.11-Interfaces]] <
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>'''My Writeups:''' <
> {{attachment:IconsPage/iconCircleSmall.png}} [[https://wiki.edubuntu.org/JonathanFerguson/Bird|Bird Internet Routing Daemon]] <
> {{attachment:IconsPage/iconCircleSmall.png}} [[https://wiki.edubuntu.org/JonathanFerguson/NTP|Network Time Protocol]] <
> {{attachment:IconsPage/iconCircleSmall.png}} [[https://wiki.edubuntu.org/JonathanFerguson/Quagga|Quagga Routing Software Suite]] <
> {{attachment:IconsPage/iconCircleSmall.png}} [[https://wiki.edubuntu.org/JonathanFerguson/radvd|Router Advertisement Daemon]] <
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>'''Useful Commands:''' <
>Network Interface [[https://www.itu.int/rec/dologin.asp?lang=e&id=T-REC-Y.1564-202106-I!Cor1!PDF-E|bit rate testing]] using a server and client hierarchy — if the Interface speeds of the End Systems are not equal, do not source UDP from the faster transmit-capable End System. <
>`iperf3 -s` <
>`iperf3 -b 0 -f m -l 0 -M 9216 -N -O 0 -P 1 -t 300 -V -w 0 -Z --get-server-output --no-fq-socket-pacing -c `` `[`-B` ]` `[`-Ru`]`` <
>Run a shell script on a particular CPU <
>`getconf _NPROCESSORS_ONLN` <
>`taskset -c `` ./shell-script` <
>Run a shell script with Real Time scheduling <
>`sudo chrt `[`-f` | `-r`]` `<1-99>` sudo -u $USER ./shell-script` <
>Create a backup of a disk <
>`blkid && lsblk -f && sudo fdisk -l | grep "Disk /dev/"` <
>`sudo dd if=`` | lzma --best > ./backup` <
>Restore a backup to a disk <
>`blkid && lsblk -f && sudo fdisk -l | grep "Disk /dev/"` <
>`sudo dd if=/dev/zero of=``; unlzma ./backup -c | sudo dd of=``` <
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>'''Useful Daemons:''' <
>Domain Name System <
>`sudo apt-get -y install bind9 && ( sudo sed -i 's/RESOLVCONF=no/RESOLVCONF=yes/' /etc/default/bind9 2> /dev/null || sudo sed -i 's/RESOLVCONF=no/RESOLVCONF=yes/' /etc/default/named ) && echo -e "zone dn42 IN { type forward; forward only; forwarders { fd42:d42:d42:54::1; fd42:d42:d42:53::1; 172.20.0.53; 172.23.0.53; }; };" | sudo tee -a /etc/bind/named.conf.local && sudo named-checkconf /etc/bind/named.conf.local && ( sudo /etc/init.d/bind9 restart 2> /dev/null || sudo /etc/init.d/named restart )` <
>File Transfer Protocol <
>`sudo add-apt-repository -uy universe &> /dev/null; sudo apt-get -y install pure-ftpd` <
>Hypertext Transfer Protocol <
>`sudo apt-get -y install software-properties-common && sudo add-apt-repository -uy ppa:unit193/cherokee && sudo apt-get -y install cherokee cherokee-admin` <
>IEEE 802.1AB Link Layer Discovery Protocol <
>`sudo apt-get -y install lldpd && echo -e "DAEMON_ARGS=\"-l -L /usr/sbin/lldpcli -x\"" | sudo tee -a /etc/default/lldpd && sudo systemctl restart lldpd.service && sudo lldpcli update` <
>`lldpcli watch` <
>Secure Shell <
>`sudo apt-get -y install ssh` <
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>'''Useful Programmes:''' <
>Concurrent Shells <
>`sudo apt-get -y install byobu` <
>Network Interface Utilisation <
>`sudo add-apt-repository -uy universe &> /dev/null; sudo apt-get -y install ethstats` <
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> ---- ''[[http://Jonathan-Ferguson.au/|Jonathan Ferguson]], [[https://wiki.edubuntu.org/JonathanFerguson|Ubuntu Wiki]], [[https://wiki.edubuntu.org/JonathanFerguson]]'' ----