http://docs.rubygems.org/read/chapter/16 http://docs.rubygems.org/read/chapter/2 http://docs.rubygems.org/read/chapter/10

http://www.ubuntugeek.com/howto-configure-pptp-vpn-in-ubuntu-intrepid-and-jaunty.htmlirst you need to install the following packages sudo apt-get install pptp-linux ppp pptpdConfigurationFirst you need to edit /etc/ppp/chap-secrets file su…

apt-get update sudo apt-get install build-essential sudo apt-get install libxslt-dev libxml2-dev

Ubuntu server 12.10 より上のバージョンだとNXのリドローが上手く行かず、再コネクトするとテキストが見えなくなる。（以下を参照）http://askubuntu.com/questions/198790/nomachine-nx-text-missing-on-all-gtk-interface-unity-and-gnome-classicそこで…

http://anahorny.blogspot.hk/2011/08/selenium-webdriver-ruby-tutorial.html http://qiita.com/items/9cb81d7a98150ff22f53

sudo apt-get install nautilus-open-terminal$ sudo add-apt-repository ppa:nae-team/ppa $ sudo apt-get update && sudo apt-get install nautilus-open-as-root

https://help.ubuntu.com/community/ADSLPPPoEhttp://www.debian.org/doc/manuals/debian-reference/ch05.ja.html

Being the default desktop environment Unity still not supported by NX sessions, Ubuntu 12.10 introduces two different types of GNOME session fallback. The default fallback is named 'GNOME Classic' and neither NX 3.5.0 or NoMachine 4 are ab…

http://www.debian.org/doc/manuals/debian-reference/ch05.ja.html

http://stackoverflow.com/questions/14305497/ruby-one-encoded-data-to-another-encoded-csv-with-many-lineshttp://qa.atmarkit.co.jp/q/2349/revisions文字列中に自身のエンコーディングとして不正な文字が入っていたり、変換先エンコーディングに変換で…

http://askubuntu.com/questions/8884/whats-the-risk-of-upgrading-over-sshhttp://serverfault.com/questions/321520/ssh-connection-lost-during-server-upgrade-how-to-reconnect-to-processhttp://serverfault.com/questions/321724/ubuntu-server-upgr…

http://superuser.com/questions/213264/cant-access-select-websites-on-linux-but-can-on-windows

$netstat -tln $sudo ufw status $sudo iptables -L INPUT

http://superuser.com/questions/173821/vpn-through-vpnThe target VPN server I want to connect to allows connections only from one IP address. When I am at my office (the network public IP is trusted on the VPN server) everything is OK, but …