Don't worry! It's only stuff...

# find files without read / write permissions for other
find /media/foo /media/bar ! -perm -o+rw -exec ls -l {} \;
find /media/foo /media/bar -ctime -1 -type f ! -perm -go+rw -exec chmod a+rw {} \;
find /media/foo /media/bar -1 -type d ! -perm -go+rwx -exec chmod 777 {} \;

# find all empty files
find /tmp -type f -empty

# find empty directories
find . -type d -empty

# print file content
find ./ -type f | while read f; do printf "\n# file %s\n" "$f"; cat "$f"; done

# find files by date
find /path/to/dir -newermt "yyyy-mm-dd"

# list all files modified on given date

# authentification
curl www.example.com --user username:password

# put
curl -X PUT -d arg=val -d arg2=val2 localhost:8080

# view haeder
curl -I https://example.com/foo

echo "deb http://archive.ubuntu.com/ubuntu yakkety main" > /etc/apt/sources.list.d/yakkety.list
apt-get update
apt-get install -y ssh
rm /etc/apt/sources.list.d/yakkety.list
apt-get update

ssh -V
OpenSSH_7.3p1 Ubuntu-1, OpenSSL 1.0.2g 1 Mar 2016

mkdir ~/.ssh/config.d
sed -i '1iInclude config.d/*' ~/.ssh/config

Links
https://superuser.com/questions/247564/is-there-a-way-for-one-ssh-config-file-to-include-another-one

http://ofbiz.example.com:8080/ofbizsetup/control/main
http://www.apache.org/

# Install graphite
apt install -y apt-transport-https graphite-carbon graphite-web libapache2-mod-wsgi

# connect to JVM
https://github.com/jmxtrans/jmxtrans

# run as docker container
docker run -d --name graphite -p 8080:80 -p 2003:2003 sitespeedio/graphite
user: guest
pass: guest

# Links
http://graphiteapp.org/

apt-get install docker-engine=1.13.1-0~ubuntu-xenial

wget -q --no-check-certificate https://raw.githubusercontent.com/panticz/installit/master/install.openshift.sh -O - | bash -

#!/bin/bash

. /etc/os-release
if [ "${ID_LIKE}" == "debian" ]; then
    wget -q --no-check-certificate https://raw.githubusercontent.com/panticz/installit/master/install.docker.sh -O - | bash -
    sudo apt-get install git wget
    sudo sed -i 's|ExecStart=/usr/bin/dockerd -H fd://|ExecStart=/usr/bin/dockerd -H fd:// --insecure-registry 172.30.0.0/16|g' /etc/systemd/system/multi-user.target.wants/docker.service
    systemctl daemon-reload
else
    yum install -y docker git wget
    sudo sed -i "s|# INSECURE_REGISTRY='--insecure-registry'|INSECURE_REGISTRY='--insecure-registry 172.30.0.0/16'|g" /etc/sysconfig/docker
fi

systemctl enable docker
systemctl start docker

wget https://github.com/openshift/origin/releases/download/v1.5.0-rc.0/openshift-origin-client-tools-v1.5.0-rc.0-49a4a7a-linux-64bit.tar.gz -qO /tmp/openshift-origin-client-tools-linux-64bit.tar.gz 
tar xzf /tmp/openshift-origin-client-tools-linux-64bit.tar.gz -C /tmp/
cp /tmp/openshift-origin-client-tools-*/oc /usr/local/bin/

rm -rf /tmp/openshift-origin-client-tools*

# create test project
oc cluster up #--public-hostname=openshift.example.com --loglevel=10
oc login -u developer -p developer
oc whoami
oc new-app -L
oc projects
oc new-app openshift/ruby-20-centos7~https://github.com/openshift/ruby-ex
oc get all
oc get pod -w
oc logs -f ruby-ex-1-build
oc get services
oc expose service ruby-ex #--hostname=app1.example.com
oc get route

echo "192.168.178.31 ruby-ex-myproject.192.168.178.31.xip.io" >> /etc/hosts

Manage OpenShift with Ansible
https://github.com/openshift/openshift-ansible
https://www.ansible.com/blog/2013/09/19/deploying-highly-available-openshift-origin-clusters

# Ansible playbook
https://github.com/panticz/ansible/tree/master/roles/ansible

Links
https://www.openshift.org/
https://github.com/openshift/origin/blob/master/docs/cluster_up_down.md#linux
https://github.com/openshift/origin/releases/latest
https://github.com/OpenShiftDemos/openshift-cd-demo

mkdir /tmp/deb
wget http://ftp.us.debian.org/debian/pool/main/r/rsync/rsync_3.1.1-3_armhf.deb -qP /tmp/
wget http://ftp.us.debian.org/debian/pool/main/a/attr/libattr1_2.4.47-2_armhf.deb -qP /tmp/
wget http://ftp.us.debian.org/debian/pool/main/a/acl/libacl1_2.2.52-2_armhf.deb -qP /tmp/
wget http://ftp.us.debian.org/debian/pool/main/p/popt/libpopt0_1.16-10_armhf.deb -qP /tmp/
dpkg -x /tmp/rsync_3.1.1-3_armhf.deb /tmp/deb
dpkg -x /tmp/libattr1_2.4.47-2_armhf.deb /tmp/deb
dpkg -x /tmp/libacl1_2.2.52-2_armhf.deb /tmp/deb
dpkg -x /tmp/libpopt0_1.16-10_armhf.deb /tmp/deb

sudo cryptsetup luksChangeKey /dev/sda5
sudo cryptsetup luksDump /dev/sda5
https://ubuntuforums.org/showthread.php?t=837416

# change device label
sudo e2label /dev/mapper/luks-fbf84040-3193-4f4b-123456-48af9e123456 backup_disk_1

# configuration
./graylog/server/server.conf
https://fossies.org/linux/graylog/graylog.conf.example

# list all connections
nmcli con

# show connection details
nmcli con show 'MY_CONNECTION_1'

# start vpn from command line (ubuntu)
nmcli con up id VPN_NAME

nmcli dev wifi list

# modify configuration
SSID="FRITZ!Box 5960"
PASS=00011090700208423311

nmcli con add con-name "${SSID}" ifname wlan0 type wifi ssid "${SSID}"
nmcli con modify "${SSID}" wifi-sec.key-mgmt wpa-psk
nmcli con modify "${SSID}" wifi-sec.psk "${PASS}"

nmcli con up "${SSID}"

Autostart delayed VPN connection
# /home/foo/.config/autostart/vpn.desktop
[Desktop Entry]