Using PuTTY cannot connect to the Host!!!

[pesinet]

Hello people.

I am trying to use puTTY to connect to the Host but i can't. Message said - Network error: Connection refused. Any help.

Thanks.

[lamw]

Did you enable root login from the console?

If not, you'll need to follow this KB:

Did you also ensure that SSH server is running?

service sshd status

To start:

service sshd start

=========================================================================

William Lam

VMware vExpert 2009

VMware ESX/ESXi scripts and resources at:

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[weinstein5]

Lets start with something simple - are you able to ping your host from your workstation? Also in older versions of Putty it would not default to SSH so make sure you select SSH as your protocol because the other options the connection would be refused -

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[malaysiavm]

you may need to check the sshd service status

enable root through SSH is not recommend

create your own ID to proceed with the SSH connection

run su - if you need to do something with root level access after you log in.

Craig

vExpert 2009

Malaysia VMware Communities -

[harryc]

Once you can ping, has this server ever been reachable ?

Check the built in firewall ( escfg-firewall -q | grep ssh )

One step I always need to do is

At minimum execute the following at the CLI:

Root#> esxcfg-firewall –e sshClient

Root#> esxcfg-firewall –e sshServer

Root#> esxcfg-firewall –e ntpClient

[pesinet]

People i am lost. Ping is ok but i don't know how to access the console. How i check this - Check the built in firewall ( escfg-firewall -q | grep ssh )-? Sorry i am new in linux.

Thanks.

[harryc]

Most intel boxes have video, kb, and mouse/USB connections - some servers may have only a serial connection for the console, putty on com1 will often do the trick.

My blade servers ( Sun 6000/X6250 ) have a web interface for the console as well as tty connection from the frame, I'd wager other blade systems have something similar.

[depping]

Walk over to the ESX box,

type in the name(root) and password

now type the following:

nano /etc/ssh/sshd_config

scroll down til you see "PermitRootLogin" and change it to "yes"

exit nano and save the file

now type the following:

service sshd restart

try putty again.,

Duncan

VMware Communities User Moderator

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[weinstein5]

I do not think the built in firewall is the issue because by default the port 22 (SSH) is opened - when you try to use putty do you even get asked for a user name? if not then the issue is with how you are trying to connect with putty - it can let you connect via telnet, ftp protocols which are blocked by the firewall by default - make sure putty is configured to use SSH/port 22 -

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[pesinet]

ok i pressed Alt + F1 and switch to the Text Console how i go back to the Graphic Interface?

Thanks.

[RParker]

There is no graphic interface.

[pesinet]

I know, i mean i press Alt + F1 and Alt + F2 to switch between screen but in the text screen i don't know how to exit to the main screen when i started to type.

Thanks

[RParker]

If you type exit (and assuming you provided the root credentials by using su - ) it should take you back to a login window for another user. If you type exit again, now you should see a prompt to login. That will suffice for the 'main screen'

alternatively pressing ALT-F11 will take you back to the splash screen, but that's just a banner page. There really isn't a 'main' screen.

[weinstein5]

Alf-f12 will return you back

Sent from my iPhone

On Apr 22, 2009, at 9:16 AM, "pesinet" <communities-

[pesinet]

ok, I am in etc/inetd.conf. How i go back to the root?

Thanks.

[RParker]

Same as windows you can do CD / or CD .. and keep doing CD .. to take you up levels to get to the one you want.

[RParker]

Alf-f12 will return you back

Sent from my iPhone

ALT F11 Takes you back.

ALT F12 is the diagnostic screen.

[pesinet]

When i use PuTTY this is the error. Any idea?

Thanks

[Karunakar]

HI,

Try to unload your firewall in ESX,

esxcfg-firewall -u

this will allow you to access the server from putty, by default ESX will refuse any ssh connections.

-Karunakar

[dmaahs]

If the previous posts have not resolved your issue. Another thing to verify is your putty configuration. Older versions default to SSH v1. When you bring up putty, select the SSH item under connections. Make sure that 2 is the Preferred SSH protocol version. This is set in the sshd_config file at the top, the line 'Protocol 2'. With that, SSH-2 is the only one that will get an answer. Anything else will get denied., usually with the error you have stated.