Cisco Terminal Server

Terminal  Server 

A terminal or comm server commonly provides out-of-band access for multiple devices. A terminal server is a router with multiple, low speed, asynchronous ports that are connected to other serial devices, for example, modems or console ports on routers or switches.
The terminal server allows you to use a single point to access the console ports of many devices. A terminal server eliminates the need to configure backup scenarios like modems on auxiliary ports for every device. You can also configure a single modem on the auxiliary port of the terminal server, to provide dial-up service to the other devices when network connectivity fails.
async network modules that are inserted into routers, providing the same access server/terminal server capabilities but in a card. Those cars are called NM-16A and NM-32A cards and you must have a router that has a NM (network module) slot 
these modules use the 68-pin OCTAL Cables such as the CAB-OCTAL-ASYNC

Basic Configuration

ip host myport 10.10.10.1

interface loopback 0
ip address 10.10.10.1 255.255.255 255
exit
no ip domain lookup

menu tty title ^C
****YOUR MESSAGE**
^C


conf t
menu tty text 1  R1<Cabinet 20.19> Core 6509
menu tty command 1 telnet myport 2066


menu tty text 2  R2
menu tty command 1 telnet myport 2067



menu tty text 31 DISCONNECT IDLE SESSIONS
menu tty command 31 disconnect
menu tty text 32 EXIT the menu
menu tty command 32 menu-exit


AccSvr#nemu tty (enter)   the menu will dysplay

CC
 --------------------------------------------------------------------
 |                            WARNING!                              |
 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX               |         
 --------------------------------------------------------------------         
          
         
Type a number to select a device:         
         

    1          r1 <Cabinet 20.19> Core 6509

   31         DISCONNECT IDLE SESSIONS
    32         EXIT the menu

Selection:  

 or 


AccSvr# telnet myport 2066



ctrl + shift + 6   release then press X



http://www.petri.co.il/how-to-configure-cisco-router-as-terminal-server.htm
http://www.cisco.com/en/US/products/hw/routers/ps274/products_tech_note09186a00800a93f0.shtml

Cisco WLC Installing a 3rd Party SSL Certificate

Cisco WLC Installing a 3rd Party SSL Certificate for Guest Access

please follow see the link...

http://www.cisco.com/en/US/products/ps6366/products_configuration_example09186a0080a77592.shtml

An important thing to have in mind is to add  DNS Host Name in the controller Virtual interface so it matches the certificate host.

A DNS entry resolving 1.1.1.1 to  Host Name on Virtual Interface  

example      ip addres 1.1.1.1
                  DNS Host Name    wlc.yourdomain.com


Particularly this DNS host change gave me a lot of problems with my DNS team. but finally they end up adding this to the DNS server facing the internet. and adding A record. everything works as expected, the only issue i found, GeoTrust is not supported on Firefox only works on IE7 and Google Chrome. there is a solution on the Geotrust site, but not yet implemented. working on it...

Note from Cisco doc.

"Note: It is important that you provide the correct Common Name. Ensure that the host name that is used to create the certificate (Common Name) matches the Domain Name System (DNS) host name entry for the virtual interface IP on the WLC and that the name exists in the DNS as well. Also, after you make the change to the VIP interface, you must reboot the system in order for this change to take effect."

http://www.cisco.com/en/US/products/ps6366/products_configuration_example09186a0080a77592.shtml

http://www.cisco.com/en/US/products/ps6366/products_tech_note09186a0080a38c11.shtml

Host File

Format of Hosts File

The “hosts” file is a plain text file named just that, hosts. It may have to be created. Note that there is no extension on the file name. If you look in the folder \Windows\system32\drivers\etc\, you may find a default hosts file or a text file called "hosts.sam". This file with the extension “sam” is a sample file and has no function other than to illustrate the format. The default hosts (or the hosts.sam) file has these contents on more recent systems (it is slightly different in Windows XP):


# Copyright (c) 1993-2009 Microsoft Corp.
#
# This is a sample HOSTS file used by Microsoft TCP/IP for Windows.
#
# This file contains the mappings of IP addresses to host names. Each
# entry should be kept on an individual line. The IP address should
# be placed in the first column followed by the corresponding host name.
# The IP address and the host name should be separated by at least one
# space.
#
# Additionally, comments (such as these) may be inserted on individual
# lines or following the machine name denoted by a '#' symbol.
#
# For example:
#
#      102.54.94.97     rhino.acme.com          # source server
#       38.25.63.10     x.acme.com              # x client host

# localhost name resolution is handled within DNS itself.
#    127.0.0.1       localhost
#    ::1             localhost

if we need to add a new entry just add it to the hosts file and save it

example:

1.1.1.1         wcs.mydomain.com

you should can test the result just open a cmd windows and type

ping wcs.mydomain.com

Y:\>ping wcs.mydomain.com

Pinging wcs.mydomain.com [1.1.1.1] with 32 bytes of data:

Request timed out.
Request timed out.
Request timed out.
Request timed out.

Ping statistics for 1.1.1.1:
    Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),

Welcome

This blogs was created with with the intention  to share my experience in the networking field. Either in my working experience as well as my formal education (mostly Cisco .:|:..:|:.) I will write from what someones might consider basic topics to my most challenging,  time consuming case as well as my day to day findings.

What is the purpose of   theNetwork iCloud blog?
First of all, it will become an on-line and centralized personal database, in which I will store experience, Cisco related links and everything that I consider useful for networking help

• Routing and Switching 

• Network Security.

• Wireless Networks and all Cisco Mobility Solution
• VoIP and Telephony Topics

Also, become a source of help on topics related to networking issues and as everybody involved on this networking world (iCloud) I'm sure that there are so many thing to learn from other that like me, wants to share their knowledge.