zhong

Install the ELRepo and GPG key

rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org
yum install -y https://www.elrepo.org/elrepo-release-7.0-3.el7.elrepo.noarch.rpm

Enable kernel updates from elrepo

yum install -y yum-utils
yum-config-manager --enable elrepo-kernel

zhong

[epel]
name=Extra Packages for Enterprise Linux 7 - $basearch
baseurl=https://mirrors.tuna.tsinghua.edu.cn/epel/7/$basearch
#mirrorlist=https://mirrors.fedoraproject.org/metalink?repo=epel-7&arch=$basearch
failovermethod=priority
enabled=1
gpgcheck=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7

[epel-debuginfo]

zhong

# CentOS-Base.repo
#
# The mirror system uses the connecting IP address of the client and the
# update status of each mirror to pick mirrors that are updated to and
# geographically close to the client.  You should use this for CentOS updates
# unless you are manually picking other mirrors.
#
# If the mirrorlist= does not work for you, as a fall back you can try the
# remarked out baseurl= line instead.
#

zhong

[nodesource]
name=Node.js Packages for Enterprise Linux 7 - $basearch
baseurl=https://mirror.tuna.tsinghua.edu.cn/nodesource/rpm_6.x/el/7/$basearch
failovermethod=priority
enabled=1
gpgcheck=0

[nodesource-source]
name=Node.js for Enterprise Linux 7 - $basearch - Source
baseurl=https://mirror.tuna.tsinghua.edu.cn/nodesource/rpm_6.x/el/7/SRPMS

zhong

What is Diamond?

https://github.com/BrightcoveOS/Diamond

From their wiki:

Diamond is a python daemon that collects system metrics and publishes them to Graphite. It is capable of collecting cpu, memory, network, i/o, load and disk metrics. Additionally, it features an API for implementing custom collectors for gathering metrics from almost any source.

Deps

apt-get install build-essentials
apt-get install python-dev

zhong

echo "set completion-ignore-case On" >> ~/.inputrc

zhong

rh 6.0  kickstart with gpt.  
1. add necessary service, remove unnecessary service  
2. The last section starting with "#$SNIPPET('custom/xxyy')" are some post install scripts:  
  * modify /etc/hosts
    127.0.0.1   localhost.localdomain   localhost
    private_ip  hostname.jaseywang.me   hostname
  * remove zero route
  * add some parameters to kernel options
  * disable ipv6
  * add ntp server for each server to sync time

zhong

find . -name '*.py' | xargs sed -i 's/\t/    /g'

zhong

# Disable Screensaver Lock in Ubuntu 12.04 (Precise Pangolin)
gsettings set org.gnome.desktop.screensaver lock-enabled false

# Disable Screensaver (Black Screen) in Ubuntu 12.04 (Precise Pangolin)
gsettings set org.gnome.desktop.screensaver idle-activation-enabled false

zhong

/System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/LaunchServices.framework/Versions/A/Support/lsregister -kill -r -domain local -domain system-domainuser