Problem resolving hosts

My network connection started up fine after install, but when browsing web pages, it takes a really long time to resolve hostnames. For example, when I clicked on the link to this forum from the arch homepage, it took over 37 seconds to resolve the hostname. Once the hostname is resolved, everything goes wicked quick, just like it did for me when I had Mandrake installed and just like my XP computer does in the other room. Does anyone have any suggestion of how to fix this problem? I don't even know where to start.
Here's the networking portion of my rc.conf. Everything seems kosher to me, I just need some help getting it to resolve hosts better. Thanks.
# Networking
HOSTNAME="localhost"
# Module to load at boot-up (in this order)
# (prefix a module with a ! to disable it)
MODULES=(!usbserial !ide-scsi eepro100)
# Interfaces to start at boot-up (in this order)
# Declare each interface then list in INTERFACES
# (prefix an interface in INTERFACES with a ! to disable it)
# Note: to use DHCP, set your interface to be "dhcp" (eth0="dhcp")
lo="lo 127.0.0.1"
eth0="dhcp"
INTERFACES=(lo eth0)
# Routes to start at boot-up (in this order)
# Declare each route then list in ROUTES
# (prefix a route in ROUTES with a ! to disable it)
gateway="default gw 192.168.1.1"
ROUTES=(!gateway)

Actually, I had been having the exact same problem recently... my solution was to unplug, wait 5 minutes, and then plug back in my DSL modem. This fixed the problem immediately.
This solution may not be applicable to you, but it is something to try.

Similar Messages

Problem resolving host name.

Hi all,
How can I resolve some host name's IP address? Example: I've got the host name "java.sun.com" and I need to know its IP address. How can that be done?
I first thought about
InetAddress addr = InetAddress.getByName("java.sun.com");but it threw an UnknownHostException, even though I were connected to the internet and could open this page in the browser.
Again, how can I do that?
Thank you all in advance
Filipe Fedalto

Oh, geez!
You are right, I have a proxy. Is there any way I could still do it? I mean, the proxy gives me full access to the internet, so that if I type this URL into a browser it allows me to view the page...

Slapd can't resolve host, during kerberization

I've been trying to set up our OD/AD for ever with mixed success. I think I've worked out the last bugs in our odd setup but I'm stuck on one strange issue.
I've been backing out of AD bind and OD Master to Standalone Server to remove all the dir settings. Iv'e also cleaned out everything related to Directory services. I've removed the approiate files in /Library/Preferences and /var/db/
Right now, when I try to set up the server as a OD Master, It seems to go fine but the KDC doesn't start up. I get the "Kerberize" button. When I hit "Kerberize", I get he log in and it fails (login keeps reappearing).
When I check slapd's log, It claims it can't resolve my server's hostname and slapdconf -kerberise fails as a result.
I don't get it.
The hostname is set Properly:
I've set my hostname in Sys Prefs -> Sharing. I've even set it manually in /etc/hostconfig
If I "echo $HOSTNAME" I get the proper hostname. If I "hostname" I get the proper hostname.
The slapd logs report the proper hostname in the error.
DNS appears fine:
I can 'nslookup hostname' and it resolves to IP. I can 'nslookup FQDN' and it resolves fine. I've even entered the IP and hostname into /etc/hosts.
One thing is odd. If I 'dig hostname' I get the hostname back with a period. Dig doesn't seem able to resolve just a hostname. Output looks like this:
Chimp:~ sbandyk$ dig psd-directory.uchicago.edu
<< cut some junk, SB >>
;; QUESTION SECTION:
;psd-directory.uchicago.edu. IN A
;; ANSWER SECTION:
psd-directory.uchicago.edu. 169942 IN A 128.135.136.55
BUT.......
Chimp:~ sbandyk$ dig psd-directory
<< cut some junk, SB >>
;; QUESTION SECTION:
;psd-directory. IN A
I don't get an answer section. I see the same thing on other linux systems in our network (same DNS). Is there any reason why dig isn't returning info on just a hostname? It doesn't seem to use my search domains.
Is this another symptom of a DNS problem that is screwing up my Kerberos krb5kdc setup?
Is there some common issue with slapd and resolving hosts?
thanks,
Steven

I've been trying to set up our OD/AD for ever with
mixed success. I think I've worked out the last bugs
in our odd setup but I'm stuck on one strange issue.
I've been backing out of AD bind and OD Master to
Standalone Server to remove all the dir settings.
Iv'e also cleaned out everything related to
Directory services. I've removed the approiate
files in /Library/Preferences and /var/db/
Best to remove /etc/krb5.keytab too!
Is there any reason why dig isn't returning info on just a hostname?
It doesn't seem to use my search domains.
Thats just the way dig works. It wants FQDN and doesn't use your search domain.
Is this another symptom of a DNS problem that is
screwing up my Kerberos krb5kdc setup?
No.
Is there some common issue with slapd and resolving
hosts?
You seem to be able to resolve name -> ip. But the opposite is necessary too: ip -> name !
So when issuing:
$ host IP_ADDRESS
it should come up with you FQDN.
HTH
-Ralph

"couldn't resolve host name" error message

I have a new Z30 with the latest OS update installed and can’t connect to several Wi-Fi locations because of error message ‘couldn’t resolve host name’. Is there a fix to this as it seems to be an issue with BB and no other type of devices?

Assuming you're connecting via wifi, this would suggest your wifi connection is failing somewhere along the way.
Occasionally, my PB's wifi icon shows green and looks like it's working, but if I turn the PB wifi off and back on, it usually fixes the problem. You could also try rebooting the PB if resetting the wifi doesnt work.
If these things don't correct the problem, then check your wifi router (reboot it if necessary) and maybe check your internet connection with another device, ie home computer or whatever to make sure you're not having service issues.

Resolving host error on OSX Yosemite 10.10.1

Hi,
I have been facing resolving host error in chrome every 5 minutes for last few weeks. I have tried changing the DNS to 8.8.4.4 etc with no promising results. The issue is faced by mac only as all the other devices seem to connect to the internet just fine. The parental controls are off so even that is not an issue. Any help is appreciated.
Specs:
MacBook Air (13-inch, Mid 2013)
Processor: 1.3 GHz Intel Core i5
Memory: 4 GB 1600 MHz DDR3

Bah!!! I have only just experienced this issue (along with a billion other issues in Pages, but I'll leave that for another day!).
Thank you to all the great suggestions here, which didn't quite work, but led me to something that did.
I tried this and it didn't quite work:
"Hi! There seems to be a workaround for this (I've had this problem too, you'd think Apple'd sort it out?!?!)
At the top of your Pages document is the name of your document. Hover your mouse over this briefly and a drop down arrow will appear. From here you can name the document, give it a Tag and choose the save destination. Click this drop down arrow, and select your save destination from another drop down that will apear. After you have clicked on your selected save destination, click away from the drop down. Then, simply save (Cmd+S OR navigate to file>save) and it will have saved for you!"
But this worked for me:
I clicked on the drop down arrow, like suggested above, and changed the document name. Then I clicked on the 'Where' drop down menu and went right down the list and clicked on the 'other...' choice right at the bottom of the list. I chose a different location and then clicked 'Move'
For some unknown reason this worked for me where the other suggestion didn't quite work.
I've had to find so many work arounds like this in Pages recently, which you shouldn't have to do!
The only reason why I am persisting with pages is it save my clickable links when exported to PDF, where the Word program doesn't.
I hope these issues get sorted before I thrown the computer out the window due to pure frustration!

Resolving host message

I've had BT Infinity for a month now and it's mostly fine, but every now and then the connection dies and a message of "resolving host" appears in the bottom left of my internet browser. It usually only lasts a minute or two and then I just refresh and it works fine again. This is on my desktop computer which is an iMac.
But the weird thing is that when this happens, if I go on my phone - which is connected to the same BT Hub - the internet works fine.
So why would this issue only happen on my desktop computer? Both my iMac and iPhone are connected wirelessly to the same hub. Has anyone else come across this issue? It never happened with my previous internet provider so it can't be a fault with the computer.

Its probably wireless interference.
Try changing the wireless channel on the home hub, there is a choice of 13 channels.
If its a HH5, make sure that smart setup and smart wireless are disabled.
On the iMac, network connections, disable IPv6, as that can cause DNS problems.
There are some useful help pages here, for BT Broadband customers only, on my personal website.
BT Broadband customers - help with broadband, WiFi, networking, e-mail and phones.

Catalog backup getting Error resolving host - unknown host name in dataset

I have new install of OSB version 10.3.0.1.0 [Admin, Mediaserver, Client] installed on the same OEL server. My Catalog Backup jobs end up with error " unknown host name in dataset" and the job detail shows only "Error resolving host - unknown host name in dataset" while I can ping the admin host with obtool pingh command. The standard auto created Catalog backup dataset looks like this:
Dataset: OSB-CATALOG-DS
# Dataset for backing up the OSB Catalog on this administrative host
include catalog
I am able to create a separate dataset with the hostname defined and able to backup filesystems on the same host, np . Only the catalog backup from system generated dataset and schedule doesn't run. I appreciate any help or tip to make this catalog backup work. Thanks.

This problem is fixed by just restarting observiced on admin server.

Unable to resolve host - help please!

Can't connect to Internet using chrome or safari. In chrome just says unable to connect to internet and unable to resolve host. Wifi and network connections are fine and working for other devices - just the iMac which is the problem. any suggestions please?

OS/Networking is mis-configured.
Oracle is the victim; not the culprit.

Solution to "unable to resolve host" and frequent network drops

Like many, I just purchased a shiny new HP Touchpad 32GB. Updated the firmware to the latest version, enjoy it's web browsing capabilities and some of the apps.
However, like many, web browsing often coughed or sputtered and would freeze often during network operations. Web sites like Google or Bing would often hang and become useless. A Google search of "Unable to resolve host" showed that I wasnt' alone.
The 'solution', or so it seemed, was to reset the network by toggling airplane mode. But doing this every 5-10 minutes, or more often, was quite frustrating. Also, other applications, such as Spaz HD for Twitter were really lethargic.
This was all a problem until I changed the MTU on my wireless router from the standard 1500 to 1300. Rebooted the modem, all is now well. "And there was much rejoicing...."
After this change, haven't had the need to toggle the Airplane mode even once. Spaz HD runs much quicker, Google & Bing no longer lock up, complex pages such as the DailyCaller.com or Redstate.com no longer time out and work properly.
I would be curious to see if others who are having the same problem, can make a similar change, and if helps them solve this issue.
Post relates to: HP TouchPad (WiFi)

For me, it turned out to be somewhat different - my home wireless was working fine with several different devices/OSs, but it seems that WebOS stopped falling back to any DNS servers beyond the first one. Whereas other devices (android phones, linux laptops, etc) still resolved DNS fine using the secondary/tertiary DNS entries, WebOS starting giving me the "unable to resolve host" error. So I changed the (primary) static DNS entry on my wireless router to one of the Google public DNS servers (8.8.8.8) and now WebOS is happy again. The only thing that changed for me (on the tablet) was enabling usbnet just to check it out, and even after I disabled usbnet, I still had the name resolution failures. Go figure...

[SOLVED] Transient prob, can't resolve host when building AUR packages

I'm building xscreensaver-arch-logo from the AUR. I downloaded the PKGBUILD into an empty directory, ran
makepkg -s
, but I get this error:
==> Making package: xscreensaver-arch-logo 5.15-3 (Sat May 12 03:13:31 CDT 2012)
==> Checking runtime dependencies...
==> Checking buildtime dependencies...
==> Retrieving Sources...
-> Downloading xscreensaver-5.15.tar.gz...
Warning: Transient problem: timeout Will retry in 3 seconds. 3 retries left.
Warning: Transient problem: timeout Will retry in 3 seconds. 2 retries left.
Warning: Transient problem: timeout Will retry in 3 seconds. 1 retries left.
curl: (6) Could not resolve host: www.jwz.org; No address associated with hostname
==> ERROR: Failure while downloading xscreensaver-5.15.tar.gz
Aborting...
My internet connection is working at the moment. I can download the tarball from the AUR (this link: https://aur.archlinux.org/packages.php?ID=26586), but if I place it in the same directory as the PKGBUILD file, I get this error when I run makepkg -s:
==> Making package: xscreensaver-arch-logo 5.15-3 (Sat May 12 03:18:59 CDT 2012)
==> Checking runtime dependencies...
==> Checking buildtime dependencies...
==> Retrieving Sources...
-> Found xscreensaver-5.15.tar.gz
==> ERROR: add-electricsheep.diff was not found in the build directory and is not a URL.
Any help here? I've read of the benefits of using this package over the one in the official repositories, so I'd prefer to use the AUR version if at all possible.
Last edited by pythonscript (2012-05-27 16:05:26)

I believe I did download the wrong source package for xscreensaver, but if I download the package from this link: https://aur.archlinux.org/packages/xs/x … ogo.tar.gz and extract it, these are the files I see.
add-electricsheep.diff logo-180.png logo-50.png PKGBUILD
LICENSE logo-180.xpm logo-50.xpm xscreensaver.pam
That all appears correct. However, running makepkg -s in that directory yields the same error as the original post:
==> Making package: xscreensaver-arch-logo 5.15-3 (Fri May 11 23:11:01 CDT 2012)
==> Checking runtime dependencies...
==> Checking buildtime dependencies...
==> Retrieving Sources...
-> Downloading xscreensaver-5.15.tar.gz...
Warning: Transient problem: timeout Will retry in 3 seconds. 3 retries left.
Warning: Transient problem: timeout Will retry in 3 seconds. 2 retries left.
Warning: Transient problem: timeout Will retry in 3 seconds. 1 retries left.
curl: (6) Could not resolve host: www.jwz.org; No address associated with hostname
==> ERROR: Failure while downloading xscreensaver-5.15.tar.gz
Aborting...
Also, I receive a highly similar error when building the dropbox package from the AUR, which hints to me that this is a wider problem than simply the xscreensaver package. When downloading the dropbox tar file (link to file: https://aur.archlinux.org/packages/dr/d … ox.tar.gz), extracting it and listing the directory yields this:
dropbox.desktop dropbox.png PKGBUILD terms.txt
However, the error upon running makepkg -s is similar.
==> Making package: dropbox 1.4.3-1 (Fri May 11 23:13:01 CDT 2012)
==> Checking runtime dependencies...
==> Checking buildtime dependencies...
==> Retrieving Sources...
-> Downloading dropbox-lnx.x86-1.4.3.tar.gz...
Warning: Transient problem: timeout Will retry in 3 seconds. 3 retries left.
Warning: Transient problem: timeout Will retry in 3 seconds. 2 retries left.
Warning: Transient problem: timeout Will retry in 3 seconds. 1 retries left.
curl: (6) Could not resolve host: dl-web.dropbox.com; No address associated with hostname
==> ERROR: Failure while downloading dropbox-lnx.x86-1.4.3.tar.gz
Aborting...

Web service invocation problem on host hostname and port 8000 protocol : http logical port name : LP_WS_SMDAGENT_MONITORING

hello colleagues,
In the phase Connect Diagnostics dont show the Agent available in SLD, but when go to SLD i have the agents,
Error,
Connect Diagnostics Agent
The table does not contain any data
Agent availables in all SLD
SOAP:1.007 SRT: Unupported xstream found: ("HTTP Code 401 : Unauthorized")
Web service invocation problem on host hostname and port 8000 protocol : http logical port name : LP_WS_SMDAGENT_MONITORING
Thanks

OK, then pls follow below steps;
- Go to step 'Create Users' in solman_setup System Preparation scenario and make sure the user SM_INTERN_WS has a green status. Use the 'Test Login' button to make sure the user is not locked and has correct credentials maintained in solman_setup
- Immediately after checking the user status, navigate to Configure Connectivity->Enable Web Services and execute again the 'Create Logical Ports' automatic activity, in order to propagate the correct credentials to the Logical Port definitions.
- If the above operation is not successful, repeat the two steps above, providing a different user Id in 'Create Users' step, eg SM_INTERN_W1. This will prevent situations where the user gets locked by Logical Ports using an obsolete password.
Let me know the results.
Regards,
Vivek

All my browsers hang at the point of "resolving host"

Any browser hangs at the click on a new site, always at "resolving host." The whole system slows down and pages are inaccessible.

From the menu bar, select
 ▹ System Preferences... ▹ Network ▹ Advanced... ▹ DNS
Under DNS Servers you should have one or more numerical addresses, such as “192.168.1.1” or “10.0.0.1”. What are those addresses?

Could not resolve host (nil); Unknown error

Trying to install arch linux into virtualbox...
I got it to boot and everything, got my internet set up (I think), installed virtualbox guest stuff, and then had to reboot.
I try to do sudo pacman -S xorg-twm xorg-xclock xterm so that I can test X before installing a desktop enveiroment..
It then asks me for my password, the Y/N thing, etc.
And then I get a whole bunch of lines saying "error: failed retrieving file [filename] from [somewhere] : could not resolve host (nil); Unknown error"
And after that it says error: failed to commit transactions (download library error)
I follow this guide (http://wideaperture.net/blog/?p=3851), I am currently right above step 17.
Anyone knows what to do? I'm installing Arch Linux for the first time so I'm a total newbie.

Type journalctl with sudo, then push the end key to go at the last messages.
The guide you followed said :
sudo systemctl enable [email protected]
But with rescent archlinux changes, as you said with the result of 'ip addr', the base name of ethernet device has changed to enp0s3, maybe that's why you don't have the network. First disable the previous command :
sudo systemctl disable [email protected]
Then enable with the right name
sudo systemctl enable [email protected]
Either way, paste here the logs of journalctl (just type if you see some errors) after doing a
sudo systemctl restart dhcpcd
We never know, but have you checked your ethernet cable is plugged in?
For the screenshots, when I'm in virtualbox and do left ctrl+e, a window pop up to save the .png...

Constant wi-fi interruption, "resolving host"

Especially since the upgrade to Mavericks, an ongoing wi-fi connection is lost and the "resolving host" message appears when I attempt to refresh the page. I am still connected to my wi-fi but unable to upload/download any pages. It appears that this happens more often when many of the neighbors are connected to their wi-fi connections. It's almost like the number of local hot spots confuses my iMac.
Any insights or fixes would be appreciated as this is driving me mad.
Thanks.

Hey BrianC9,
Thanks for the question. I understand you are experiencing issues with Wi-Fi connectivity on your iMac. The following resource may provide a solution:
Wi-Fi: How to troubleshoot Wi-Fi connectivity
http://support.apple.com/kb/HT4628
It sounds like the connection to the Wi-Fi network is fine, but the actual internet connection drops. You might want to try power-cycling your modem (if applicable), along with your Wi-Fi router.
Thanks,
Matt M.

Constant Resolving Host Issues

I have had a good service until recently but now Constant Resolving Host Issues. Pages slow to load making it difficult to use.
HH3 Software version 4.7.5.1.83.8.94.1.37 (Type A)
I have factory reset hub and tried opendns and Google DNS.
Can anyone help?
Keith

Hi cookiesandjava
Sounds stange I'll be happy to have a look over your connection stats and see if there is anything out of place.
Could you drop me in an email please? Use the 'contact us' form in my forum profile under the 'about me' section. You can find it by clicking on my username.
Thx
Craig
BTCare Community Mod
If we have asked you to email us with your details, please make sure you are logged in to the forum, otherwise you will not be able to see our ‘Contact Us’ link within our profiles.
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Problem resolving hosts

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