Various scripts and tools mainly for Debian servers.

Install Debian on UpCloud

See https://github.com/szepeviktor/wordpress-speedtest/blob/master/README.md#how-to-choose-vps-provider

Richard Cook at Velocity NY 2013

Select Expert install.

• /backup - Tools related to archiving
• /image - Tools related to image optimization
• /input - Tools related to the terminal
• /mail - Tools related to email account management
• /monitoring - Tools related to server monitoring, alert and statistics emails
• /mysql - Tools related to database management
• /package - Tools related to Debian packages and general packaging
• /security - Security and SSL certificate related tools
• /tools - Various small tools
• /virtualization - Docker containers
• /webserver - Tools related to building webservers

• Check shell scripts: http://www.shellcheck.net/
• Code styling: https://github.com/git/git/blob/master/Documentation/CodingGuidelines
• Bashism: https://wiki.ubuntu.com/DashAsBinSh checkbashisms -f bash-script.sh

S="${HOME}/.ssh";mkdir --mode 0700 "$S";editor "${S}/authorized_keys"
ssh-keygen -v -l -f "${S}/authorized_keys"

authorized_keys parameters:

# restrict == no-port-forwarding,no-agent-forwarding,no-X11-forwarding,no-pty,no-user-rc
restrict,command="echo 'Please login as the user \"debian\" rather than the user \"root\".';echo;sleep 10" ssh-rsa AAAA...

u bash -c 'S="${HOME}/.ssh";mkdir --mode 0700 "$S";editor "${S}/authorized_keys"'
U="$(stat -c %U .)";S="$(getent passwd $U|cut -d: -f6)/.ssh";mkdir -m 0700 "$S";editor "${S}/authorized_keys";chown -R $U:$U "$S"

ssh-keygen -y -f ~/.ssh/id_ecdsa

ls /etc/ssh/ssh_host_*_key.pub | xargs -n 1 ssh-keygen -l -f

script --timing=NAME.time --append NAME.script
scriptreplay --maxdelay 1 NAME.time NAME.script

cat $SCRIPT|xz -9|base64 -w $((COLUMNS-1))
# alias: cat $SCRIPT | transit

cat $PASTED_FILE|base64 -d|xz -d > $SCRIPT
# alias: cat $PASTED_FILE | transit-receive

git init --separate-git-dir=/home/user/gitdir

Produces:

/home/user/work-dir/.git: gitdir: /home/user/git

/home/user/gitdir/config: worktree = /home/user/work-dir

echo "- - -" > /sys/class/scsi_host/host0/scan

https://google-public-dns.appspot.com/cache

https://rawgit.com/ https://cdn.rawgit.com/USER/REPO/TAG/FILE

whois -h whois.bgpmon.net 84.2.228.0

﴾͡๏̯͡๏﴿.tk

.---------------- minute (0 - 59)
| .-------------- hour (0 - 23)
| |  .----------- day of month (1 - 31)
| |  | .--------- month (1 - 12)
| |  | | .------- day of week (0 - 6)
| |  | | |
* *  * * *  USER  COMMAND

crontab -e -u USER
.---------------- minute (0 - 59)
| .-------------- hour (0 - 23)
| |  .----------- day of month (1 - 31)
| |  | .--------- month (1 - 12)
| |  | | .------- day of week (0 - 6)
| |  | | |
* *  * * *  COMMAND

Contact me: [email protected]