How to change Cisco MDS Switch admin password

How to change Cisco MDS  Switch admin password
Go to configuration mode
switch# configure terminal
switch(config)# snmp-server user admin auth md5 your_new_password
for example
snmp-server user admin auth md5 ciscopassword

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Remote Desktop Services not working

Remote Desktop Services not working

I was having an issue with windows 2008 server I enabled the Remote desktop but i was not able to connect the remote desktop firewall was off network connection was ok . even though i was not able to connect to remote desktop. i checked the telnet localhost 3389

it was not working .I found the below solution it works for me . Continue reading

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Break key is missing on keyboard

Break key is missing on my laptop keyboard and I have to use  key combination of Ctrl+Break  to reset cisco router password .

Go to search program On-Screen keyboard or type osk use the Pause key it will work as Break key.

osk

 

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Step by step how to reset cisco router password

Step by step how to reset cisco router password without loosing configuration.

1- reboot the router
2- Enter in to rom monitor mode by pressing Ctrl+Brek key (rommon 1>)
3- Change configreg to bypass to load startup config
rommon 2 > configreg 0x2142
4- Reset or reboot the router by
rommon 2 > reset Continue reading

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How to bandwidth limit with simple queue on Mikrotik Router OS

How to bandwidth limit with simple queue on Mikrotik Router OS

we have network topology like below picture and we want to limited download and upload for private network (download – 512 kbps and upload – 128 kbps).

Image8006 Continue reading

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Restarting the Management agents on an ESXi or ESX host

Restarting the Management agents on an ESXi or ESX host

From the Direct Console User Interface (DCUI):

  1. Connect to the console of your ESXi host.
  2. Press F2 to customize the system.
  3. Log in as root.
  4. Use the Up/Down arrows to navigate to Restart Management Agents.Note: In ESXi 4.1 and ESXi 5.0, 5.1 and 5.5, this option is available under Troubleshooting Options. Continue reading
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How to know RDM mapped drive connected to which LUN in storage

In VMware virtual machine how to know RDM mapped drive connected to which LUN in Storage .
1- Go to virtual machine and edit virtual machine setting.
2- Click on Hard disk which is RDM drive.
3- click on Manage Pathsrdm1

on popup window you will get LUN information  Continue reading

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Download custom image for VMware ESXi 5.5

Download custom image for VMware ESXi 5.5  for  Cisco UCS , HP, FUJITSU, NEC, Hitachi

HP Custom Image for ESXi 5.5.0 GA Install CD 

FUJITSU Custom Image for ESXi 5.5.0 GA Install CD

NEC Custom Image for ESXi 5.5.0 GA Install CD

CISCO Custom Image for ESXi 5.5.0 GA Install CD

Hitachi Custom Image for ESXi 5.5.0 GA Install CD

Download links will ask for your my vmware account  login.

 

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Unable to increase disk size on virtual machine in ESX server

you are unable to increase disk size on virtual  machine ,Disk Provisioning option has grayed out even you have disk space on data store . this may be following cases you have migrated P2V , and your disk adapter type is IDE or Snapshot is associated with the virtual machine. Continue reading

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how to run multiple command on single line on CentOS

If you want to run multiple command on single line on CentOS.

If you want to execute each command only if the previous one succeeded, then combine them using the  “&&" operator. If one of the commands fails, then all other commands following it won’t be executed. Continue reading

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