Unable to telnet to LINUX desktop

I've installed Linux 2.6.9-42.0.0.0.1 ( downloaded from oracle's website) and I'm unable to telnet to this machine from my laptop.
I get this error
C:\Documents and Settings\Administrator>telnet oragrid
Connecting To oragrid...Could not open connection to the host, on port 23: Connect failed
This is my first linux trial so I guess you need to tell me from scratch regarding starting the telnet.
Thanks
Mukul

Mukul,
Search this forum for "telnet". You'll see threads such as this one:
Re: FTP & TELNET in Enterprise Linux
Bottom line, I recommend you use ssh rather than telnet. If you're connecting from Windows, download Putty, for example.
Sergio

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pauldonnelly wrote:
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Unable to Telnet...............

Posted by: vatsey.sharad - Engineer, HCL Comnet
Jun 6, 2008, 2:09am PST
Hi,
I have two IP's Configured on my Cisco 2800. 1.1.1.1 - Loopback and 2.2.2.2 on Fast Ethernet. Both IP's are pingable across the WAN. And telnet to loopback IP is working fine. However I am unable to telnet to Fast Ethernet IP. The error message while trying to telnet to Fast Ethernet IP is: "Could not open connection to the host, on port 23: Connect failed". I tried to debug telnet on the router. The Debug output for unsuccessful telnet is as follows:
Telnet194: recv SB NAWS 139 24
However for a successful telnet session, the output is:
Telnet195: 1 1 251 1
TCP195: Telnet sent WILL ECHO (1)
Telnet195: 2 2 251 3
TCP195: Telnet sent WILL SUPPRESS-GA (3)
Telnet195: 80000 80000 253 24
TCP195: Telnet sent DO TTY-TYPE (24)
Telnet195: 10000000 10000000 253 31
TCP195: Telnet sent DO WINDOW-SIZE (31)
TCP195: Telnet received DO ECHO (1)
TCP195: Telnet received DO SUPPRESS-GA (3)
TCP195: Telnet received WILL TTY-TYPE (24)
Telnet195: Sent SB 24 1
TCP195: Telnet received WILL WINDOW-SIZE (31)
Telnet195: recv SB NAWS 110 52
Telnet195: recv SB 24 0 ANSI
There are no ACL's or firewalls involved in the picture.

Sharad
How many forums did you post this question in? I have already found it in 2 other forums.
HTH
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Hi All,
After a few days of researching, then trial and error I was able to use this [http://blogs.sun.com/ThinkThin/entry/point_and_shoot_vdi1|http://blogs.sun.com/ThinkThin/entry/point_and_shoot_vdi1] as my kiosk session. I was then able to send a windows vm session to my DTU. For Redhat linux I installed this [http://xrdp.sourceforge.net/|http://xrdp.sourceforge.net/] , which enable me to use the windows remote desktop protocol, thus enabling me to use the linux vm session on my DTU. For your information, the xrdp so far logs in with a KDE desktop. I am looking into switching it to the GNOME desktop.
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Edited by: henrydong9 on Mar 5, 2010 11:13 PM
Edited by: henrydong9 on Mar 5, 2010 11:13 PM
Edited by: henrydong9 on Mar 6, 2010 7:28 PM

Unable to Telnet / SSH to a particular cisco switch

Hello,
I have an unusual issue that I just can't seem to track down. We have a Windows Server 2008 R2 box that is unable to telnet or ssh to one switch in our network.
Server IP: 10.0.0.74
Cisco Switch IP: 10.1.0.7
I am able to access all other switches/routers on the 10.1.0.x network, but not this one. I ping and tracert by ip address and name.
We have a number other servers on our network and they all can access this switch
Example:
a. 10.0.0.73 can telnet/ssh to 10.1.0.7
b. 10.0.0.72 can telnet/ssh to 10.1.0.7
c. 10.0.0.50 can telnet/ssh to 10.1.0.7
d. My workstation (10.0.250.213) can telnet/ssh to 10.1.0.7
If anyone can help with troubleshooting further, I would greatly appreciate it.

Thanks for the reply Philippe! Here is the route print
IPv4 Route Table
===========================================================================
Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 10.0.0.2 10.0.0.74 266
10.0.0.0 255.255.0.0 On-link 10.0.0.74 266
10.0.0.74 255.255.255.255 On-link 10.0.0.74 266
10.0.255.255 255.255.255.255 On-link 10.0.0.74 266
10.10.0.0 255.255.0.0 On-link 10.0.0.74 266
10.10.0.74 255.255.255.255 On-link 10.0.0.74 266
10.10.255.255 255.255.255.255 On-link 10.0.0.74 266
127.0.0.0 255.0.0.0 On-link 127.0.0.1 306
127.0.0.1 255.255.255.255 On-link 127.0.0.1 306
127.255.255.255 255.255.255.255 On-link 127.0.0.1 306
224.0.0.0 240.0.0.0 On-link 127.0.0.1 306
224.0.0.0 240.0.0.0 On-link 10.0.0.74 266
255.255.255.255 255.255.255.255 On-link 127.0.0.1 306
255.255.255.255 255.255.255.255 On-link 10.0.0.74 266
===========================================================================
Persistent Routes:
Network Address Netmask Gateway Address Metric
0.0.0.0 0.0.0.0 10.0.0.2 Default
===========================================================================
IPv6 Route Table
===========================================================================
Active Routes:
If Metric Network Destination Gateway
1 306 ::1/128 On-link
1 306 ff00::/8 On-link
===========================================================================
Persistent Routes:
None
Firewall is disabled and there is no active antivirus. Im pretty sure port blocking is not the issue. I am able to ssh and telnet from this box to every other switch/router in our network.
This server has Solarwinds on it and tracks the health of our network (servers, routers, switches, ups, ect.). The only reason we noticed an issue is because it stopped backing up the config for this particular switch. All other switchs/routers
config is backed up to this server every morning at 2:00AM.
With solarwinds, this server is also able to communicate with this switch via snmp / icmp and ping.
Thanks again for the help!

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Hi
We upgraded E2013 to CU5 on Sat 13 - On Thu 18 at 9:12 all 4 CAS servers stopped processing mail
error from smarthost:
421 4.3.2 The maximum number of concurrent connections has exceeded a limit, closing transmission channel
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421 4.3.2 Service not available
netstat -an | find "25" shows port is listening
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Hi ,
Please check the below mentioned links
http://social.technet.microsoft.com/Forums/exchange/en-US/6cb89070-6c17-4f80-8ad1-b4bfff8c8ed6/432-the-maximum-number-of-concurrent-connections-has-exceeded-a-limit-closing-trasmission-channel
http://social.technet.microsoft.com/Forums/exchange/en-US/62ccfbd1-9b1e-4e67-94be-692b725428a3/exchange-cas-array-exceeds-max-number-of-concurrent-connections?forum=exchange2010
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So the big question here: How can I force VDI3 to consider Linux desktops as being "Idle" and thus "unused" so it would properly trigger the desktop recycling?
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#! /usr/bin/bash
FLEXVDAPOOLS=`/opt/SUNWvda/sbin/vda pool-list | /usr/bin/tail +2 | /usr/bin/grep 'flexible' | /usr/bin/awk {' print $1 '}`
for POOL in $FLEXVDAPOOLS
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done
unset POOL.
Edited by DJ .... My workaround is working.

If the user powers off the desktop (instead of just logout),
then the desktop is not correctly detected as idle. Sorry, but this does not seem to be true. If the user really shuts down the VM then VDI3 does correctly detect the VM as being "idle" and initiates the recycling. What we did here is that we configured the Ubuntu VM's to go into hibernation after 15 minutes if they're idle. I know, I know: Hibernation doesn't work. That's not the point. The point is that VM's won't consume too many resources on the desktop provider if they are idle. To VDI and VirtualBox such a "hibernating" system appears to be "Powered Off" as well, so we assumed it would trigger the recycling too. But it just doesn't happen, such an auto-hibernated Ubuntu VM is still being considered as being "Used" ... which is kind of silly: How can it be "used" if it's "Powered Off"? Especially since we're talking about a flexible pool. By logic a VM can't be "used" in a flexible pool if it's "Powered Off". Hence my workaround above (customer is very happy with it).
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Hi Everybody,
May I know how I can download or get a Trial CD of Linux SBS 9 and the Linux
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> In article <0iz9e.4107$[email protected]>, bfcs1
> @yahoo.com says...
> > I am running SBS 4.2.
> >
> > Wondering if there are any differences on file sharing and file access
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>
> You might look to upgrading to SBS 6.5 with upgrade protection -- then
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>
>
>
> --
> Barry Schnur
> Novell Support Connection Volunteer Sysop

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hello experts!!!
5508 controller is at the headquarters which can be normally pinged, telnetted, http'd and tftp'ed....
at the remote site, controller can be pinged and http'ed but cannot be telnetted and tftp'ed.
there is a complete tracert from the remote site pc all the way to the controller.
from a switch at a remote site, the controller can be telnetted.
but from a pc on the remote site (which belongs to a remote site vlan), it is unable to telnet and tftp the controller.
all active components can be telnetted from the remote site, such as the core switches and routers at the headquearters, except the controller.
upgraded the controller code to 7.2.xxx in headquarters but still unable to telnet and tftp the controller from remote site.
is there any more settings on the controller for telnet and tftp?
what could be the problem why the controller is not available for telnet and tftp from the remote site?
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Hello, Leo!
See output of the command:
(Cisco Controller) >show network summary
RF-Network Name............................. GID2012
Web Mode.................................... Enable
Secure Web Mode............................. Enable
Secure Web Mode Cipher-Option High.......... Disable
Secure Web Mode Cipher-Option SSLv2......... Enable
OCSP........................................ Disabled
OCSP responder URL..........................
Secure Shell (ssh).......................... Enable
Telnet...................................... Enable
Ethernet Multicast Forwarding............... Disable
Ethernet Broadcast Forwarding............... Disable
AP Multicast/Broadcast Mode................. Unicast
IGMP snooping............................... Disabled
IGMP timeout................................ 60 seconds
IGMP Query Interval......................... 20 seconds
MLD snooping................................ Disabled
MLD timeout................................. 60 seconds
MLD query interval.......................... 20 seconds
User Idle Timeout........................... 28800 seconds
ARP Idle Timeout............................ 300 seconds
Cisco AP Default Master..................... Enabled
--More-- or (q)uit
AP Join Priority............................ Disable
Mgmt Via Wireless Interface................. Enable
Mgmt Via Dynamic Interface.................. Enable
Bridge MAC filter Config.................... Enable
Bridge Security Mode........................ EAP
Mesh Full Sector DFS........................ Enable
AP Fallback ................................ Enable
Web Auth Redirect Ports .................... 80
Web Auth Proxy Redirect ................... Disable
Web Auth Captive-Bypass .................. Disable
Web Auth Secure Web ....................... Enable
Fast SSID Change ........................... Disabled
AP Discovery - NAT IP Only ................. Enabled
IP/MAC Addr Binding Check .................. Enabled
CCX-lite status ............................ Disable
oeap-600 dual-rlan-ports ................... Disable
oeap-600 local-network ..................... Enable

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Unable to telnet to LINUX desktop

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