VPN Connection

VPN is a virtual private network built using public lines. It is a technology that allows you to share data and information using a VPN device such as a router with VPN function even if you are a remote location. The merit of VPN is that it costs less than leased line. Especially for Internet VPN it is inexpensive because it uses normal internet line contract.

VPN is a network technology that has been in use since the 2000s, with the background of the development of IT technology and virtualization technology in the background. Besides low-cost merits, data communication is also secured for safety, so more enterprises are introducing it.

Mechanism and features of VPN connection using the Internet
To establish a VPN connection between business offices located in geographically remote places, connect a LAN by installing a VPN dedicated router at both offices. This creates a virtual leased line via the Internet and allows you to access data on each other’s servers even if you are at a remote place. Because it becomes like connected to a common LAN, even you are away, you can share files and the work the same way.

Google Translation Toolbar settings

There are times when I am dealing with multiple languages at work, and when want to translate all at once to turn on pop of “このページを翻訳しますか?”.

Open google chrome setting screen.

Next will look at the detailed setting.

Check the section “Use translation tools on pages other than my mother tongue”.

As offshore development increases, opportunities to use translation tools increase.

AWS CommandLine

AWS Command Line Interface(CLI)
Operate AWS on the command line

It seems that you can easily install AWS CLI by using Python pip. AWS-CLI seems to work with Python 2.6.5 or higher or Python 3.3 or higher.
Let’s put aws cli in centos6.

[vagrant@localhost ~]$ python -V
Python 3.5.2

Installation of AWS-CLI
[vagrant@localhost ~]$ pip install awscli –upgrade –user
Collecting awscli
Downloading https://files.pythonhosted.org/packages/25/f2/ae339ba36dc8774b8fb2b7da1b7351ccdedc7af4b2458221e7ac865b4d2d/awscli-1.16.96-py2.py3-none-any.whl (1.4MB)
100% |████████████████████████████████| 1.4MB 4.3MB/s
Collecting s3transfer<0.2.0,>=0.1.12 (from awscli)
Downloading https://files.pythonhosted.org/packages/d7/14/2a0004d487464d120c9fb85313a75cd3d71a7506955be458eebfe19a6b1d/s3transfer-0.1.13-py2.py3-none-any.whl (59kB)
100% |████████████████████████████████| 61kB 3.2MB/s
Requirement already satisfied, skipping upgrade: PyYAML<=3.13,>=3.10 in ./.pyenv/versions/3.5.2/lib/python3.5/site-packages (from awscli) (3.13)
Collecting botocore==1.12.86 (from awscli)
Downloading https://files.pythonhosted.org/packages/d7/af/fd9c0f1f0fdc03d3367a56f35093f8b1020ba1a97ead9fa580156895944b/botocore-1.12.86-py2.py3-none-any.whl (5.2MB)
100% |████████████████████████████████| 5.3MB 545kB/s
Collecting rsa<=3.5.0,>=3.1.2 (from awscli)
Downloading https://files.pythonhosted.org/packages/e1/ae/baedc9cb175552e95f3395c43055a6a5e125ae4d48a1d7a924baca83e92e/rsa-3.4.2-py2.py3-none-any.whl (46kB)
100% |████████████████████████████████| 51kB 3.8MB/s
Collecting colorama<=0.3.9,>=0.2.5 (from awscli)
Downloading https://files.pythonhosted.org/packages/db/c8/7dcf9dbcb22429512708fe3a547f8b6101c0d02137acbd892505aee57adf/colorama-0.3.9-py2.py3-none-any.whl
Collecting docutils>=0.10 (from awscli)
Downloading https://files.pythonhosted.org/packages/36/fa/08e9e6e0e3cbd1d362c3bbee8d01d0aedb2155c4ac112b19ef3cae8eed8d/docutils-0.14-py3-none-any.whl (543kB)
100% |████████████████████████████████| 552kB 650kB/s
Requirement already satisfied, skipping upgrade: python-dateutil<3.0.0,>=2.1; python_version >= “2.7” in ./.pyenv/versions/3.5.2/lib/python3.5/site-packages (from botocore==1.12.86->awscli) (2.7.3)
Collecting jmespath<1.0.0,>=0.7.1 (from botocore==1.12.86->awscli)
Downloading https://files.pythonhosted.org/packages/b7/31/05c8d001f7f87f0f07289a5fc0fc3832e9a57f2dbd4d3b0fee70e0d51365/jmespath-0.9.3-py2.py3-none-any.whl
Requirement already satisfied, skipping upgrade: urllib3<1.25,>=1.20; python_version >= “3.4” in ./.pyenv/versions/3.5.2/lib/python3.5/site-packages (from botocore==1.12.86->awscli) (1.23)
Collecting pyasn1>=0.1.3 (from rsa<=3.5.0,>=3.1.2->awscli)
Downloading https://files.pythonhosted.org/packages/7b/7c/c9386b82a25115cccf1903441bba3cbadcfae7b678a20167347fa8ded34c/pyasn1-0.4.5-py2.py3-none-any.whl (73kB)
100% |████████████████████████████████| 81kB 2.2MB/s
Requirement already satisfied, skipping upgrade: six>=1.5 in ./.pyenv/versions/3.5.2/lib/python3.5/site-packages (from python-dateutil<3.0.0,>=2.1; python_version >= “2.7”->botocore==1.12.86->awscli) (1.11.0)
Installing collected packages: jmespath, docutils, botocore, s3transfer, pyasn1, rsa, colorama, awscli
The scripts pyrsa-decrypt, pyrsa-decrypt-bigfile, pyrsa-encrypt, pyrsa-encrypt-bigfile, pyrsa-keygen, pyrsa-priv2pub, pyrsa-sign and pyrsa-verify are installed in ‘/home/vagrant/.local/bin’ which is not on PATH.
Consider adding this directory to PATH or, if you prefer to suppress this warning, use –no-warn-script-location.
Successfully installed awscli-1.16.96 botocore-1.12.86 colorama-0.3.9 docutils-0.14 jmespath-0.9.3 pyasn1-0.4.5 rsa-3.4.2 s3transfer-0.1.13
You are using pip version 18.0, however version 19.0.1 is available.
You should consider upgrading via the ‘pip install –upgrade pip’ command.

[vagrant@localhost ~]$ aws –version
-bash: aws: コマンドが見つかりません

If I just installed it, I have to passed the path because the aws command was not recognized.