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- gnulinux
- Jonathan Haack
- Haack's Networking
- netcmnd@jonathanhaack.com
Welcome to my gnulinux wiki page. This page has simple and complex system administrationnotes to remind me when I forget something that I already learned! If you are visiting, I hope you find the page useful.
#powerpc gnulinux notes; issues, installs +
Making a bootable usb stick …
diskutil list diskutil eraseDisk <filesystemtype> <partitionname> <diskidentifier> diskutil unmountDisk <diskidentifier>
Examples
sudo dd if=/Volumes/Cave/Users/axes/Desktop/lubuntu.iso of=/dev/disk4 bs=1m sudo dd if=/Users/me/tails-i386-1.3.iso of=/dev/rdisk9 bs=16m && sync
Insert USB drive into PPC Mac of choice, depress command-option-o-f (open firmware) try usb0, usb1, usb2, etc. until it works and finds the port you used for the img
probe-usb boot usb0/disk@1:2,\\yaboot boot usb1/disk@1:2,\\yaboot
once inside the yaboot shell, some common examples are:
install url=mintppc.org install cli cli-expert cli64 cli64-expert
#wireless hardware drivers, b43 cutter +
deb http://httpredir.debian.org/debian/ wheezy main contrib non-free deb http://http.debian.net/debian/ jessie main contrib non-free apt-get update sudo lspci apt-get install firmware-b43-installer apt-get install firmware-b43-lpphy-installer apt-get install firmware-b43legacy-installer
use lspci above and then visit https://wiki.debian.org/bcm43xx#supported-b43
#some imaging notes
convert .iso to .img syntax example
hdiutil convert -format UDRW -o destination_file.img source_file.iso diskutil list diskutil partitionDisk /dev/disk1 1 "Free Space" "unused" "100%" dd if=[Directory/to/udrw/img] of=/dev/disk1 bs=1m diskutil eject /dev/disk2
Plug into the Intel Mac, hold option while booting, proceed w/ install
#optical media ripping from command line
cdrecord -pad -dao -data blag-140k-i686.iso
#security & policy information
sudo nano /etc/pam.d/common-password
Prevent Log in - create file
/etc/nologin
tcpdump common uses; monitoring traffic on network
tcpdump -n -i <eth0> <host> <x.x.x.x> tcpdump -n -i <eth0> <port> <#> tcpdump -i eth0 -nn -c 10 tcp and host <x.x.x.x> tcpdump -i port http or port sntp or port imap or port pop3 -l -A | egrep -e 'pass=|pwd=|log=|login=|user=|username=|pw=|passw=|passwd=|password=|pass:|user:|username:|password:|login:pass |user |Referer:'
#display managers; lightdm & gdm3
cd /usr/share/lightdm/light.conf.d/
Global lightdm settings here
cd /etc/lightdm/ sudo nano lightdm.conf
Lightdm ubuntu-MATE greeter and lock screen issues
/usr/share/common/backgrounds/ubuntu-mate-common/Ubuntu-Mate-Cold.jpg /etc/lightdm/lightdm-gtk-greeter.conf
The .conf file w/ some common sense parameters
[SeatDefaults] allow-guest=false greeter-hide-users=true
#ubuntu-MATE; DE 'porting' and tweaks 2 OS
sudo apt install mate-tweak cd /etc/apt/sources.list sudo nano sources.list <add contrib non-free to default debian repositories> sudo apt update sudo apt upgrade sudo reboot <upon reboot, begin the harvesting of ubuntu-MATE themes> cd /etc/apt/sources.list sudo nano sources.list <in the config file you just opened add the two repos below - no braces!> <deb http://us.archive.ubuntu.com/ubuntu yakkety main restricted non-free> <deb http://us.archive.ubuntu.com/ubuntu yakkety universe main restricted non-free> sudo apt update sudo apt install ubuntu-keyring-archive sudo apt update sudo apt install ubuntu-mate* <computer might crash during install, reboot, repeat or remove wildcard and install piecemeal> sudo apt autoremove cd /etc/apt/sources.list sudo nano sources.list <change the config file and comment out ubuntu repositories> <#deb http://us.archive.ubuntu.com/ubuntu yakkety main restricted non-free> <#deb http://us.archive.ubuntu.com/ubuntu yakkety universe main restricted non-free> sudo apt update sudo apt autoremove sudo apt update sudo apt upgrade sudo reboot <there could / will be problems when you attempt to sudo apt update - if so> sudo apt update --fix-missing <may need to run with and without ubuntu repos> sudo dpkg --reconfigure -a <there may also be a file in var that needs removed - be careful> rm -rf /var/<path/to/locked/file/from/apt/update/on/ubuntu>
#mac - hardware - gnulinux requirements
mac fan control; needed to ensure computer does not fry …
apt-get update apt-get install macfanctld /etc/macfanctl.conf <set desired values> service macfanctld restart
#openWRT notes
Enabling https
opkg update opkg install luci-lib-px5g px5g-standalone libustream-openssl opkg install luci /etc/init.d/uhttpd restart
#openVPN server / client notes
<coming soon>
#samba share basics
sudo apt update sudo apt install samba sudo adduser username sudo smbpasswd -a username mkdir /home/username/sharename nano /etc/samba/smb.conf [sharename] path = /home/username/sharename available = yes valid users = camalas read only = no browseable = yes public = yes writable = yes
#sitc
start or stop network manager (or other services)
systemctl <start/stop/restart> networkmanager.service /etc/init.d/network-manager stop <start/stop/restart>
verify dhcp client working for interface eno1
dhclient -v eno1
add subnet to interface eno1
ip address add 192.1##.1##.2/24 dev eno1
interface tool w/ eno1 example
ethtool eno1
interface with switch using screen
screen /dev/ttyUSB0/ 19200
calculate subnet automatically
subnetcalc
proxying web traffic through remote server
ssh -D <port#> <user>@<domain.com>
get block ID of drives
blkid
nmap example to get addresses of hosts / devices on lan
nmap -sP 10.##.##.0/24
find utils example
find . -iname "<name>"
#git basics
git - force git to use ssh & pull / push to verify
git remote set-url origin git@github.com:oemb1905/haackyard-gh.git git clone ssh://<user>@<##.##.##.##>/home/git . git commit -am"notes inside here" git pull git push
#nano / text editor basics
ctl-r read -open file curr. buffer, or new in multibuffer mode, enter4new empty buffer ctl-o writeout i.e. save file cctl-x exit i.e. quit; also exits from buffer in multibuffer mode; asks writeout/save ctl-g get help/aid/assistance enter, ctl-m newline bksp, ctl-h delete previous character del, ctl-d delete current character left, ctl-b backward character right, ctl-f forward character home, ctl-a beginning of line end, ctl-e end of line up, ctl-p previous line down, ctl-n next line pgup, ctl-y previous page pgdn, ctl-v next page m-space previous word ctl-space next word alt-\ beginning of file alt-/ end of file ctl-c display cursor position ctl-/ go i.e. jump to line and column ctl-^ set/unset mark; or alt-a alt-^ copy marked, or copy line if nomark; actually alt-6 i.e. do not need shift key ctl-k cut marked or cut lineifnomark or cut2end line if cut2end is enabled using alt-k ctl-u paste cut or copied alt-t cut to end of file ctl-w search alt-w search again alt-r search and replace alt-< previous file buffer; actually alt-, i.e. do not need shift key alt-> next file buffer; actually alt-. i.e. do not need shift key alt-x toggle bottom help display alt-y toggle color syntax hiliting;colors config via /usr/share/nano/*.nanorc files alt-c toggle cursor position display alt-d toggle dos/unix format option at writeout/save prompt alt-k toggle cut to end of line ctl-t show file list at read/open prompt ctl-x prompt for external command to execute at read/open prompt and insert output ctl-z suspend to shell; use fg to return
#scripts and miscellaneous
downloading scripts and executing them; example from DO
curl -sSL https://agent.digitalocean.com/install.sh | sh
ngrok notes; private http(s) tunnels
./ngrok http 80 wget https://[ngrok tunnel]/id_rsa.pub cat ~/id_rsa.pub >> ~/.ssh/authorized_keys
query hosts on the lan
avahi-browse -tl _workstation._tcp
Debian print system configuration to stdout; use root
cat /proc/cpuinfo && lspci | grep -i vga && uname -a && lsb_release -a lsb_release -a lspci
Debian repo management
cd /etc/apt nano sources.lsit [main contrib non-free]
#next topic …
issue
#next topic …
issue
— oemb1905 2017/10/14 03:35
