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SSH login without password

<table border="0" cellpadding="0" cellspacing="0" style="margin-top: 5px;"><tbody>
</tbody></table> SSH login without passwordYou want to use Linux and OpenSSH to automate your tasks. Therefore 
you need an automatic login from host A / user a to Host B / user b. 
You don't want to enter any passwords, because you want to call <tt>ssh</tt> 
from a within a shell script. 
<h2>How to do it</h2>First log in on A as user a and generate a pair of authentication keys. 
Do not enter a passphrase: 
<pre class="shell">a@A:~> ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/home/a/.ssh/id_rsa): 
Created directory '/home/a/.ssh'.
Enter passphrase (empty for no passphrase): 
Enter same passphrase again: 
Your identification has been saved in /home/a/.ssh/id_rsa.
Your public key has been saved in /home/a/.ssh/id_rsa.pub.
The key fingerprint is:
3e:4f:05:79:3a:9f:96:7c:3b:ad:e9:58:37:bc:37:e4 a@A
</pre>Now use <tt>ssh</tt> to create a directory <tt>~/.ssh</tt> as user b on B. (The directory may already exist, which is fine): 
<pre class="shell">a@A:~> ssh b@B mkdir -p .ssh
b@B's password: 
</pre>Finally append a's new public key to <tt>b@B:.ssh/authorized_keys</tt> and 
enter b's password one last time: 
<pre class="shell">a@A:~> cat .ssh/id_rsa.pub | ssh b@B 'cat >> .ssh/authorized_keys'
b@B's password: 
</pre>From now on you can log into B as b from A as a without password: 
<pre class="shell">a@A:~> ssh b@B
</pre>A note from one of our readers: 
Depending on your version of SSH you might also have to do the 
following changes: 
 
<ul><li>Put the public key in <tt>.ssh/authorized_keys2</tt></li>
<li>Change the permissions of <tt>.ssh</tt> to <tt>700</tt></li>
<li>Change the permissions of <tt>.ssh/authorized_keys2</tt> to <tt>640</tt></li>
</ul><div style="color: #d00000; margin-bottom: 0px; text-align: right;">Keywords: 
 <a href="http://www.linuxproblem.org/kw_ssh.html" style="color: #d00000;">ssh</a> 
 <a href="http://www.linuxproblem.org/kw_openssh.html" style="color: #d00000;">openssh</a> 
 <a href="http://www.linuxproblem.org/kw_password.html" style="color: #d00000;">password</a> 
   Author: <a href="http://www.linuxproblem.org/auth_1.html" style="color: #d00000;">Mathias Kettner</a></div><table cellpadding="0" cellspacing="0" style="padding-top: 50px; width: 785px;"> <tbody>
<tr><td valign="bottom"> </td>
 <td align="right" valign="bottom"><a href="http://mathias-kettner.com/check_mk">Check_MK</a>  
 <a href="http://mathias-kettner.de/">MK</a> 
 </td></tr>
</tbody></table>http://www.linuxproblem.org/art_9.html

SSH login without password

SSH login without password You want to use Linux and OpenSSH to automate your tasks. Therefore you need an automatic login from host A /...

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User Guide for Installation of Windows 7 Driver Package for ZTE WCDMA Data Card | Wireless Driver & Software

<a href="http://www.wireless-driver.com/zte-wcdma-datacard-windows7-driver-installation-guide/">User Guide for Installation of Windows 7 Driver Package for ZTE WCDMA Data Card | Wireless Driver & Software</a> 
<h2 class="entry-title">User Guide for Installation of Windows 7 Driver Package for ZTE WCDMA Data Card</h2><img alt="zte-logo" border="0" height="120" src="http://www.wireless-driver.com/wp-content/uploads/2010/07/ztelogo.jpg" style="border-bottom-width: 0px; border-left-width: 0px; border-right-width: 0px; border-top-width: 0px; display: inline; margin: 25px 0px 15px 60px;" title="zte-logo" width="180" /> 
 
1. How to get Windows 7 driver package: 
 
ZTE WCDMA DATACARD support Windows 7 operating system, please download the Windows 7 driver package exe. Installation file: ZTEDrvSetup.exe. 
 
<a class="zip" href="http://download.wireless-driver.com/driver/ZTE/ZTEDrvSetup.exe">Download 1</a>, <a href="http://www.wireless-driver.com/driver/ZTE/ZTEDrvSetup.exe">Download 2</a> (3.45MB) 
 
2. Windows 7 driver package installation steps: 
 
Note: please firstly install UI program of Modem, then install Windows 7 driver package. 
 
The specific installation steps are as follows: 
 
(Note: this installation take ZTE common version’s UI installation 
process as an example, the installation interface maybe is different 
from the customized UI installation interface, but the installation 
method is the same.) 
 
 
2.1 Insert Modem to PC with windows 7 operating system, the data card 
 will automatically start the UI installation process as Fig 1. 
 
<img height="303" src="http://www.wireless-driver.com/wp-content/uploads/2010/03/Installation_of_Windows7_driver_package_for_ZTE_WCDMA_DATACARD1-901.jpg" style="display: block; float: none; margin-left: auto; margin-right: auto;" width="400" /> 
 
<div align="center">Fig 1 </div>2.2 Following the prompt to finish the installation, the interface for installation completed is as fig 2. 
 
<img height="301" src="http://www.wireless-driver.com/wp-content/uploads/2010/03/Installation_of_Windows7_driver_package_for_ZTE_WCDMA_DATACARD1-1050.jpg" style="display: block; float: none; margin-left: auto; margin-right: auto;" width="400" /> 
 
<div align="center">Fig 2 </div>2.3 Double-click windows 7 driver package: ZTEDrvSetup.exe, the installation interface is as Fig3. 
 
 
<img height="145" src="http://www.wireless-driver.com/wp-content/uploads/2010/03/Installation_of_Windows7_driver_package_for_ZTE_WCDMA_DATACARD1-1185.jpg" style="display: block; float: none; margin-left: auto; margin-right: auto;" width="380" /> 
 
<div align="center">Fig 3 </div>2.4 T he interface for W indows 7 driver package installation completed is as Fig 4, click "Finish" to complete installation. 
 
<img height="304" src="http://www.wireless-driver.com/wp-content/uploads/2010/03/Installation_of_Windows7_driver_package_for_ZTE_WCDMA_DATACARD1-1338.jpg" style="display: block; float: none; margin-left: auto; margin-right: auto;" width="400" /> 
 
<div align="center">Fig 4 </div>2.5 From "Start" ->"Computer", right click"Mange" to find"Computer 
 Management", click"Device Manager", search Modem and Ports(see red 
mark), as Fig 5. it means Windows 7 driver package installed 
successfully, now you can normal use the Modem. 
 
<img height="315" src="http://www.wireless-driver.com/wp-content/uploads/2010/03/Installation_of_Windows7_driver_package_for_ZTE_WCDMA_DATACARD1-1607.jpg" style="display: block; float: none; margin-left: auto; margin-right: auto;" width="450" /> 
 
<div align="center">Fig 5 </div>3. FAQ 
 
3.1 I f Windows 7 driver package is firstly installed, the UI program can’t be installed , how to solve the problem like this? 
 
P lease firstly uninstall Windows 7 driver, then install UI program 
firstly , and then install Windows 7 driver, as the specific 
installation methods, please refer to the "Windows 7 driver package 
installation steps". 
 
Windows 7 driver uninstall methods are as follows: 
 
1)From"Start" ->"Control Panel", click"Uninstall a program" . As Fig 6. 
 
<img height="388" src="http://www.wireless-driver.com/wp-content/uploads/2010/03/Installation_of_Windows7_driver_package_for_ZTE_WCDMA_DATACARD1-2108.jpg" style="display: block; float: none; margin-left: auto; margin-right: auto;" width="450" /> 
 
<div align="center">Fig 6 </div>2) selected "ZTE USB Driver", click"Uninstall /Change", to uninstall Windows 7’s driver. As fig 7. 
 
<img height="392" src="http://www.wireless-driver.com/wp-content/uploads/2010/03/Installation_of_Windows7_driver_package_for_ZTE_WCDMA_DATACARD1-2240.jpg" style="display: block; float: none; margin-left: auto; margin-right: auto;" width="450" /> 
 
<div align="center">Fig 7 </div>3.2 After UI program installed completed and plug out the Modem, does the Windows 7’s driver package can be installed directly? 
 
You can install Windows 7’s driver directly, please refer to the 
"Windows 7 driver package installation steps 2.3" to see the specific 
installation methods.

User Guide for Installation of Windows 7 Driver Package for ZTE WCDMA Data Card | Wireless Driver & Software

User Guide for Installation of Windows 7 Driver Package for ZTE WCDMA Data Card | Wireless Driver & Software User Guide for Installatio...