Network error: Unable to lookup host names

on one client running the cisco any connect, It is unable to connect and keeps giving an error
Network error: Unable to lookup host names.
any idea about this?

You tell us that this happens on one client. Are there other clients which work ok? If so then I would wonder about some problem with the install of the client on this PC. Perhaps you might un-install and install again?
HTH
Rick

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Unable to lookup host 'my-imac.lan' – Unknown host

Printing from old iMac running 10.4.11 to printer attached to new iMac running 10.5.7 was working fine for 9 months and now gives the message 'Unable to lookup host ‘my-imac.lan’ – Unknown host'. There is a wireless connection between the machines. It can see the printer which is in the printer list, I can exchange files between the two machines, but it won't print now.
I have just done an Archive and Restore on the old iMac but this has not changed anything.
Wireless printing from a MacBook running 10.5.7 is unaffected.
Any ideas from anyone?

Thanks for the details. Did some more checking this arvo based on your info and found the following on my Tiger G4.
Queue Name: [email protected]
Host Name: 192.168.44.106
As you can probably tell, the IP address shown is the Mac Pro sharing the USB printer, and is running 10.5.7. No mention of a host name or any reference to the name shown in the Sharing pane.
By contrast, another 10.5 Mac connecting to the Mac Pro shows the Queue name as the printer@machine_name (no mention of .local) and the host name as "localhost".
So we need to work out where your Tiger Mac is getting the 10.5 hostname of "My-iMac.lan" I believe that your local hosts file is the likely candidate. If not, then it could be the router that connects the two Mac's together.
For a Mac to Mac local network, the Bonjour Computer Name is typically used to identify each Mac on the network. However, if there is a domain name server (DNS) on your network, then this can override the Bonjour name (which is set via the Sharing pane).
What you can do is open Terminal and type the following.
cd /etc "then press ENTER".
This will change your current working directory to the etc directory.
nano hosts "then press ENTER".
This will display the contents of the hosts file and I believe that this may have a reference to the .lan name that is causing the symptom.
If there is no reference to the .lan name then you can exit the nano editor by pressing Control X.
The next thing to try is pinging the name "My-iMac.lan". Open the Network Utility, located in Applications > Utilities, and select the Ping tab. In the address field enter "my-imac.lan" (without the "s) and set the ping count to 4. Now press Ping and see if you get a reply. If there is something associating this name to an IP address, then you should see the IP address in the top line, and if the IP address is currently in use, then you will see replies from that device.
Let me know how all that goes.
PaHu

Printing - Unable to lookup host message

Hello. I have a powermac dual 2.0 G5 which is connected to my HP all-in-one 2610xi by a usb cable. I am sharing this printer using the printer sharing in system preferences. I am sharing it wirelessly via the airport card with my G4 titanium powernbook. The powermac is running tiger and the powerbook is running 10.3.9. All of a sudden, when I try to print over the wireless network I get the message "Unable to lookup host" in the print dialogue box. I'm pretty sure that I recently installed the latest update on the powermac so I think that may have done it. Any suggestions on how to deal with this problem. I have already deleted and re-installed the printers/drivers on both computers and repaired permissions on the powerbook. I know the laptop is connecting because I am also sharing my internet connection which is working. Help please!

Thanks

System config network error while parsing /etc/hosts

I am configuring RAC on Oracle Linux,i have configured /etc/hosts on both nodes,when ever i opened network, its displaying error message.
system config network error while parsing /etc/hosts
wrong ip on line 25
wrong ip on line 26
wrong ip on line 27
here is my host entries.
node1
====
[root@racnode1 ~]# cat /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1 localhost.localdomain localhost
#::1 localhost6.localdomain6 localhost
#####Public#####
192.168.1.101 racnode1.reg.com racnode1
192.168.1.102 racnode2.reg.com racnode2
192.168.1.103 racnode3.reg.com racnode3
192.168.1.104 racnode4.reg.com racnode4
####Private######
10.10.1.1 racnode1-priv.reg.com racnode1-priv
10.10.1.2 racnode2-priv.reg.com racnode2-priv
10.10.1.3 racnode3-priv.reg.com racnode3-priv
10.10.1.4 racnode4-priv.reg.com racnode4-priv
#####Virtual#####
192.168.1.201 racnode1-vip.reg.com racnode1-vip
192.168.1.202 racnode2-vip.reg.com racnode2-vip
192.168.1.203 racnode3-vip.reg.com racnode3-vip
192.168.1.204 racnode4-vip.reg.com racnode4-vip
#SCAN
#192.168.1.301 racdb-scan.reg.com racdb-scan
#SCAN
192.168.1.301 racnode1-scan.reg.com racnode1-scan
192.168.1.302 racnode2-scan.reg.com racnode2-scan
192.168.1.303 racnode3-scan.reg.com racnode3-scan
[root@racnode1 ~]# hostname
racnode1.reg.com
[root@racnode1 ~]#
node2 host entries
===========
[root@racnode2 ~]# cat /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1 localhost.localdomain localhost
#::1 localhost6.localdomain6 localhost
#####Public#####
192.168.1.101 racnode1.reg.com racnode1
192.168.1.102 racnode2.reg.com racnode2
192.168.1.103 racnode3.reg.com racnode3
192.168.1.104 racnode4.reg.com racnode4
####Private######
10.10.1.1 racnode1-priv.reg.com racnode1-priv
10.10.1.2 racnode2-priv.reg.com racnode2-priv
10.10.1.3 racnode3-priv.reg.com racnode3-priv
10.10.1.4 racnode4-priv.reg.com racnode4-priv
#####Virtual#####
192.168.1.201 racnode1-vip.reg.com racnode1-vip
192.168.1.202 racnode2-vip.reg.com racnode2-vip
192.168.1.203 racnode3-vip.reg.com racnode3-vip
192.168.1.204 racnode4-vip.reg.com racnode4-vip
#SCAN
#192.168.1.301 racdb-scan.reg.com racdb-scan
#SCAN
192.168.1.301 racnode1-scan.reg.com racnode1-scan
192.168.1.302 racnode2-scan.reg.com racnode2-scan
192.168.1.303 racnode3-scan.reg.com racnode3-scan
[root@racnode2 ~]#
i am not able to ping racnode1-priv or racnode2-priv.
from node1:
========
[root@racnode1 ~]# ping racnode2-priv
PING racnode2-priv.reg.com (10.10.1.2) 56(84) bytes of data.
From racnode1-priv.reg.com (10.10.1.1) icmp_seq=2 Destination Host Unreachable
From racnode1-priv.reg.com (10.10.1.1) icmp_seq=3 Destination Host Unreachable
From racnode1-priv.reg.com (10.10.1.1) icmp_seq=4 Destination Host Unreachable
5 packets transmitted, 0 received, +3 errors, 100% packet loss, time 4002ms
, pipe 3
[root@racnode1 ~]#
from node2:
=======
[root@racnode2 ~]# ping racnode1-priv
PING racnode1-priv.reg.com (10.10.1.1) 56(84) bytes of data.
From racnode2-priv.reg.com (10.10.1.2) icmp_seq=2 Destination Host Unreachable
From racnode2-priv.reg.com (10.10.1.2) icmp_seq=3 Destination Host Unreachable
From racnode2-priv.reg.com (10.10.1.2) icmp_seq=4 Destination Host Unreachable
--- racnode1-priv.reg.com ping statistics ---
4 packets transmitted, 0 received, +3 errors, 100% packet loss, time 2999ms
, pipe 3
[root@racnode2 ~]#
any idea where configuration went wrong.
Thanks

here is output, i can see lot of additional characters.
[root@racnode1 ~]# cat -vet /etc/hosts
# Do not remove the following line, or various programs$
# that require network functionality will fail.$
127.0.0.1 localhost.localdomain localhost$
#::1^I^Ilocalhost6.localdomain6 localhost$
$
#####Public#####$
192.168.1.101 racnode1.reg.com racnode1$
192.168.1.102 racnode2.reg.com racnode2$
192.168.1.103 racnode3.reg.com racnode3$
192.168.1.104 racnode4.reg.com racnode4$
####Private######$
10.10.1.1 racnode1-priv.reg.com racnode1-priv$
10.10.1.2 racnode2-priv.reg.com racnode2-priv$
10.10.1.3 racnode3-priv.reg.com racnode3-priv$
10.10.1.4 racnode4-priv.reg.com racnode4-priv$
#####Virtual#####$
192.168.1.201 racnode1-vip.reg.com racnode1-vip$
192.168.1.202 racnode2-vip.reg.com racnode2-vip$
192.168.1.203 racnode3-vip.reg.com racnode3-vip$
192.168.1.204 racnode4-vip.reg.com racnode4-vip$
#SCAN$
#192.168.1.301 racdb-scan.reg.com racdb-scan$
#SCAN$
192.168.1.301^Iracnode1-scan.reg.com^Iracnode1-scan$
192.168.1.302^Iracnode2-scan.reg.com^Iracnode2-scan$
192.168.1.303^Iracnode3-scan.reg.com^Iracnode3-scan$
[root@racnode1 ~]#
from node2:
========
[root@racnode2 ~]# cat -vet /etc/hosts
# Do not remove the following line, or various programs$
# that require network functionality will fail.$
127.0.0.1 localhost.localdomain localhost$
#::1^I^Ilocalhost6.localdomain6 localhost$
$
#####Public#####$
192.168.1.101 racnode1.reg.com racnode1$
192.168.1.102 racnode2.reg.com racnode2$
192.168.1.103 racnode3.reg.com racnode3$
192.168.1.104 racnode4.reg.com racnode4$
####Private######$
10.10.1.1 racnode1-priv.reg.com racnode1-priv$
10.10.1.2 racnode2-priv.reg.com racnode2-priv$
10.10.1.3 racnode3-priv.reg.com racnode3-priv$
10.10.1.4 racnode4-priv.reg.com racnode4-priv$
#####Virtual#####$
192.168.1.201 racnode1-vip.reg.com racnode1-vip$
192.168.1.202 racnode2-vip.reg.com racnode2-vip$
192.168.1.203 racnode3-vip.reg.com racnode3-vip$
192.168.1.204 racnode4-vip.reg.com racnode4-vip$
#SCAN$
#192.168.1.301 racdb-scan.reg.com racdb-scan$
#SCAN$
$
192.168.1.301^Iracnode1-scan.reg.com^Iracnode1-scan$
192.168.1.302^Iracnode2-scan.reg.com^Iracnode2-scan$
192.168.1.303^Iracnode3-scan.reg.com^Iracnode3-scan$
Edited by: Endeca on Apr 7, 2013 10:13 AM

Unexpected error: unable to find item name at page or application level

HI!
I upgrade my application from apex 3.0 to 3.1
I created a new page.
When trying to insert a new row, on clicking "create", the page displays the error :
Unexpected error: unable to find item name at page or application level
This error didn't appear in apex 3.0
What this error can be? Is it a bug of APEX 3.1?
Thank you!

I have seen this in combination with javascript. Recreating the item helped.
Denes Kubicek
http://deneskubicek.blogspot.com/
http://www.opal-consulting.de/training
http://htmldb.oracle.com/pls/otn/f?p=31517:1
-------------------------------------------------------------------

Error- Unable to lookup in the system.

Dear All,
For my backend server I have created system object on portal.
Then I have made 1 transaction iview for the same system object.
In the preview of the iview it is showing me correct screen and its operations are also fine.
But when I am attaching that iview to ane role and attaching that role to any user and viewing that iview thru tht users login it is giving me an error
Portal Runtime Error
An exception occurred while processing a request for :
iView : N/A
Component Name : N/A
Unable to lookup System 'TEST'. Please check the system object and the alias..
See the details for the exception ID in the log file
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Hi All,
While checking the permissions under SAP Authorizations it is giving me an error
classcom.sapportals.connector.connection.ConnectionFailed ExceptionConnection Failed: Nested Exception. Failed to get connection.
I have check all the parameters under connector property also
they are fine.
One more thing if this role I attched to administrator account it is working properly.But for normal user it is giving the run time error as mentioned above.
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ORA-12545 error after changing the host name as IP address in Tnsnames.ora

HI,
I tried to connect PHP and oracle in Red Hat linux. I got error ORA-12545 after changing the host name as IPAddress in Tnsnames.ora file. In sqlnet.ora file also i have entry for tnsnames in Directory_Path. I struggled so much but i couldnt solve that. Please give me ur valuable suggestions....

12545, 00000, "Connect failed because target host or object does not exist"
// *Cause: The address specified is not valid, or the program being
// connected to does not exist.
// *Action: Ensure the ADDRESS parameters have been entered correctly; the
// most likely incorrect parameter is the node name. Ensure that the
// executable for the server exists (perhaps "oracle" is missing.)
// If the protocol is TCP/IP, edit the TNSNAMES.ORA file to change the
// host name to a numeric IP address and try again.
Seems you specified wrong IP address.

SPICE Netlist Error: Unable to parse parameter name

The history so far (using MS11):
I tried to make a new component, i.e. the CNY70.
Therefore I needed the simulation model. So I designed a simple subckt that I tested, and ok, it works.
Subckt schematic exported a netlist, lines added: .SUBCKT <name> 1 2 3 4 and .ENDS
This .cir file used as Model for the new part I created.
And then....used this new part in a testschematic.....and the simulation is aborted:::
SPICE Netlist Error in schematic RefDes 'd1', element 'ud1': Unable to parse parameter name
SPICE Netlist Error in schematic RefDes 'd1', element '<unknown>': Due to errors, the component 'ud1' has been omitted from the simulation.
QUESTION: what did I do wrong / what am I missing in the Subckt file????
I looked in some modelfiles of opto-manuf. like Avago, and they all make use of V-controlled-I sources etcetera.
Capera
EWB/Multisim Educational Licence User since EWB9
Attachments:
CNY70 subcircuittest4.pdf ‏8 KB
CNY70 subcircuit.ms11 ‏50 KB
CNY70 parttest1.ms11 ‏40 KB

Hello Capera,
I understand that spending alot time and ending up with an error can be extremely frustrating.
I did some further testing and it seems like I get the same error even with an empty model.
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Kind Regards,
Thierry C - Applications Engineering Specialist Northern European Region - National Instruments
CLD, CTA
If someone helped you, let them know. Mark as solved and/or give a kudo.

Network Error - Unable to submit podcast

Hi all
This is my first post for help so I was wondering if anyone could take the time out to help me.
I have recently coded some xml to create a podcast which works when I manually enter the url in itunes (see pic below) but when I create a request to add the feed, it doesn't upload it instead states that the network connection has stopped. During this time, my internet connection doesn't drop so Im sure the problem lies within itunes.
Now, I have contacted itunes support who advised me that my feed isn't valid.
But like I said above, I have submitted my link manually and have downloaded all episodes. This has been tested and confirmed on another internet connection and operating system too.
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http://www.perceptionfm.info/rss/podcast.rss
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When you subscribe manually the Store is not involved at all: your own iTunes application is going straight to the feed. Sometimes the Store will choke on something which doesn't cause problems when subscribing manually.
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Error - couldnt resolve the host name - anyone know how to fix?

Solved!
Go to Solution.

Something in the DNS chain cannot convert from the english web page name into an IP address.
In Browser pull down settings, Privacy and Security., Clear all.
Restart Playbook.
Restart router.
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Host name changed on server after router reboot?

I recently installed a new router and when I started my Mac Pro the server (10.7.5) Serverwould not respond and I received an error message stating the host name has changed on my server. I can not recall what I did nut I got the server working. I had to reboot teh router again and have received the following email:
From: [email protected] (System Administrator)
Subject: Network change notification for discussion.pharmweb.net
Date: 26 January 2013 12:48:52 GMT
To: [email protected]
The host name of discussion.pharmweb.net has changed to discussion.lan. Some services may not work correctly until they have been updated to use the new configuration.
I can not get the server to respond to web requests and am not sure what to change, Sharing is showing my local hostname as discussion.local
Help...

Are you sure it wasn't just the server's LAN IP that changed?
Is it set to Manual ?
If your server is behing a router with a NAT address, then a change in the public IP shouldn't have caused that error. I bet your LAN IP changed and now you don't have port mapping correct. pherhaps the public IP changed also, but my money is on the LAN address.
If its the LAN address, there is no point waiting for the ISP.
Set it back to the address it used before and make sure the router provides NAT with port mapping to that address.
Thats all in your control, not the ISP.

Network Error (dns_unresolved_hostname) about Web dynapro

Hi Experts,
Today I do a test about web dynapro componet. I create a new compoent and active. It's the first tiem to make web dynapro.
After creating the applicaton and test, the issue occured. Please help me check the following error message notice. I'd like to where is the error and how to solve it.
Network Error (dns_unresolved_hostname)
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Hope this helps!
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IOS App store Error - Unable to Purchase

Every time I try to buy an app I get this error:
Unable to Purchase
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I am pretty much certain that it has something to do with the fact that this is a phone which was restored from backup as the phone had to be replaced as the former had a faulty battery.
I would appreciate any suggestions.
Best regards
Felix

Hi ckuan
Have you tried signing out and sign back in again in
Settings > iTunes & App Store > Apple ID: > sign out ?
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Settings > General > Reset > Reset Network Settings ?
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Thx

Change MTA Host name

Hi There,
I am getting the following bounce back when emailing people from my Exchange 2013 server:
Remote Server returned ’550 5.7.1 <[email protected]<mailto:[email protected]>>: Recipient address rejected: Mail appeared to be SPAM or forged. Ask your Mail/DNS-Administrator to correct HELO and DNS MX settings or to get removed
from DNSBLs; MTA helo: ttlcloudexch04.ttlcloud.local, MTA hostname: remote.ttlhosting.co.uk[131.117.188.187] (helo/hostname mismatch)’
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How can I change this?
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There is no requirement that the FQDN on the send connector must match the MX record. If that was the case, most mail flow would fail.
The important thing is that there is a PTR for the IP of the sending SMTP gateway and you it should have a FQDN n the send connector that matches that.
If you want to set the send connector to mail.ttlhosting.co.uk, do that following:
http://technet.microsoft.com/en-us/library/aa998294(v=exchg.150).aspx
The Fqdn parameter specifies the FQDN used as the source server for connected messaging servers that use the Send connector to receive outgoing messages. The value of this parameter is displayed to connected messaging servers whenever a source server
name is required, as in the following examples:
In the EHLO/HELO command when the Send connector communicates with the next hop messaging server
In the most recent Received header field added to the message by the next hop messaging server after the message leaves the Transport service on a Mailbox server or an Edge server
During TLS authentication
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Twitter!: Please Note: My Posts are provided “AS IS” without warranty of any kind, either expressed or implied.

Network Error - dns_unresolved_hostname

Hi Experts
When I try to use solman_workcenter, I am getting the below error
Network Error (dns_unresolved_hostname)
Your requested host "hostname.ab.local" could not be resolved by DNS.
For assistance, contact your network support team.
I have already maintained icm/host_name_full profile parameter.
Please help me resovle the issue.
Thanks in advance
Thanks & Regards
Venkat

hi
do u hav any proxy config? try to ping the host from ur machine ?
please refer this [Business Server Page (BSP) error - CX_FQDN|Business Server Page (BSP) error - CX_FQDN]
jansi

Network error: Unable to lookup host names

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