Search Results

Search found 2568 results on 103 pages for 'lookup webmaster'.

Page 79/103 | < Previous Page | 75 76 77 78 79 80 81 82 83 84 85 86  | Next Page >

  • JBossMQ - Clustered Queues/NameNotFoundException: QueueConnectionFactory error

    - by mfarver
    I am trying to get an application working on a JBoss Cluster. It uses Queues internally, and the developer claims that it should work correctly in a clustered environment. I have jbossmq setup as a ha-singleton on the cluster. The application works correctly on whichever node currently is running the queue, but fails on the other nodes with a: "javax.naming.NameNotFoundException: QueueConnectionFactory not bound" error. I can look at JNDIview from the jmx-console and see that indeed the QueueConnectionFactory class only appears on the primary node in the Global context. Is there a way to see the Cluster's JNDI listing instead of each server? The steps I took from a default Jboss 4.2.3.GA installation were to use the "all" configuration. Then removed /server/all/deploy/hsqldb-ds.xml and /deploy-hasingleton/jms/hsqldb-jdbc2-service.xml, copying the example/jms/mysq-jdbc2-service.xml file into its place (editing that file to use DefaultDS instead of MySqlDS). Finally I created a mysql-ds.xml file in the deploy directory pointing "DefaultDS" at an empty database. I created a -services.xml file in the deploy directory with the queue definition. like the one below: <server> <mbean code="org.jboss.mq.server.jmx.Queue" name="jboss.mq.destination:service=Queue,name=myfirstqueue"> <depends optional-attribute-name="DestinationManager"> jboss.mq:service=DestinationManager </depends> </mbean> </server> All of the other cluster features of working, the servers list each other in the view, and sessions are replicating back and forth. The JBoss documentation is somewhat light in this area, is there another setting I might have missed? Or is this likely to be a code issue (is there different code to do a JNDI lookup in a clusted environment?) Thanks

    Read the article

  • Sticky sessions not sticky on coldfusion cluster

    - by GreatSeaSpider
    we're trying to deploy a legacy coldfusion site onto a new CF8 cluster. The cluster consists of three cf instances running under JRUN4 on a single windows 2008 server. I've got the cluster set to not replicate sessions, and sticky sessions turned on. each instance is set to use J2EE session variables. The application tag for the site has: sessionmanagement="Yes" setclientcookies="Yes" setdomaincookies="Yes" when each instance starts... no errors are reported in the instance log and they join the cluster without any issues. though the intances do have: 16/10 08:31:25 info SessionReplicationService successfully joined a JINI lookup service (assigned JINI-ID .....) and 16/10 08:31:25 info Clusterable service SessionReplicationService discovered a SessionReplicationService peer on a JRun server named "xxxx" on host xxxx which is interesting since session replication is definately off, is the SessionReplicationService responsible for sticky sessions aswell? thats enough background, the problem is that the sticky sessions appear to simply not work, each request is bounced to a different instance, and it seems as if the sessions are being lost on each instance anyways? As soon as the cluster is down to a single instance, the web app works exactly as expected and the sessions seem fine. has anybody got any ideas for me? i've been trawling the web and I cant seem to find any answers.

    Read the article

  • TinyDNS and proper settings for SPF records

    - by Teddy
    I've inherited a TinyDNS configuration that have following entries for SPF: @domain.com:x.x.x.3:a::86400 @domain.com:x.x.x.103:c:10:86400 =domain.com:x.x.x.3:86400 =mail.domain.com:x.x.x.3:86400 =mail.domain.com:x.x.x.103:86400 'domain.com:v=spf1 ip4\072x.x.x.3 ip4\07231.130.96.103 ptr\072mail.domain.com +mx a -all:3600 'mail.domain.com:v=spf1 ip4\072x.x.x.3 ip4\072x.x.x.103 ptr\072mail.domain.com +mx a -all:3600 'a.mx.domain.com:v=spf1 ip4\072x.x.x.3 ip4\072x.x.x.103 ptr\072mail.domain.com +mx a -all:3600 This is the result from http://www.kitterman.com/spf/validate.html SPF record lookup and validation for: domain.com SPF records are primarily published in DNS as TXT records. The TXT records found for your domain are: v=spf1 ip4:x.x.x.3 ip4:x.x.x.103 ptr:mail.domain.com +mx a -all SPF records should also be published in DNS as type SPF records. No type SPF records found. Checking to see if there is a valid SPF record. Found v=spf1 record for domain.com: v=spf1 ip4:x.x.x.3 ip4:x.x.x.103 ptr:mail.domain.com +mx a -all evaluating... SPF record passed validation test with pySPF (Python SPF library)! I'm struggling with this from yesterday and cant figure it why this validator returns No type SPF records found. I see in BIND we cand define SPF type record with example.com. IN SPF "v=spf1 a -all", but in TinyDNS we only have TXT records that we set for SPF, maybe this is a problem?

    Read the article

  • VRF Internet Gateway Multiple External IP's 1 Internal IP to AWS

    - by user223903
    Trying to setup VRF for the first time and its not working for me even though I keep reading everything online. IP's are different to real life. I have an Internet connection which I can ping to my router in the current setup below 195.45.73.22 I have a block of ip addresses 195.45.121.0/27 I want to setup multiple VPN's to AWS so need to have multiple external ip's thus the block of IP addresses. I have setup the 2nd and 3rd IP address but can not ping them from external. Any help would be grateful. Bryan ip source-route ! ip vrf Internet rd 1:1 route-target export 1:1 route-target import 1:1 ip vrf AWSSydney1 rd 2:2 route-target export 2:2 route-target import 2:2 route-target import 1:1 ip vrf AWSSydney2 rd 3:3 route-target export 3:3 route-target import 3:3 route-target import 1:1 ip cef no ip domain lookup no ipv6 cef multilink bundle-name authenticated interface FastEthernet0/0 description Vocus Internet no ip address speed 100 full-duplex interface FastEthernet0/0.1 encapsulation dot1Q 1 native ip address 195.45.73.22 255.255.255.252 interface FastEthernet0/0.2 encapsulation dot1Q 2 ip vrf forwarding AWSSydney1 ip address 195.45.121.1 255.255.255.224 interface FastEthernet0/0.3 encapsulation dot1Q 3 ip vrf forwarding AWSSydney2 ip address 195.45.121.2 255.255.255.224 interface FastEthernet0/1 description LAN_SIDE ip address 10.0.0.5 255.255.255.0 speed 100 full-duplex no mop enabled ip forward-protocol nd ip route 0.0.0.0 0.0.0.0 195.45.73.21 ip route vrf Internet 0.0.0.0 0.0.0.0 195.45.73.21

    Read the article

  • Kerberos authentication not working for one single domain

    - by Buddy Casino
    We have a strange problem regarding Kerberos authentication with Apache mod_auth_kerb. We use a very simple krb5.conf, where only a single (main) AD server is configured. There are many domains in the forest, and it seems that SSO is working for most of them, except one. I don't know what is special about that domain, the error message that I see in the Apache logs is "Server not found in Kerberos database": [Wed Aug 31 14:56:02 2011] [debug] src/mod_auth_kerb.c(1025): [client xx.xxx.xxx.xxx] Using HTTP/[email protected] as server principal for password verification [Wed Aug 31 14:56:02 2011] [debug] src/mod_auth_kerb.c(714): [client xx.xxx.xxx.xxx] Trying to get TGT for user [email protected] [Wed Aug 31 14:56:02 2011] [debug] src/mod_auth_kerb.c(625): [client xx.xxx.xxx.xxx] Trying to verify authenticity of KDC using principal HTTP/[email protected] [Wed Aug 31 14:56:02 2011] [debug] src/mod_auth_kerb.c(640): [client xx.xxx.xxx.xxx] krb5_get_credentials() failed when verifying KDC [Wed Aug 31 14:56:02 2011] [error] [client xx.xxx.xxx.xxx] failed to verify krb5 credentials: Server not found in Kerberos database [Wed Aug 31 14:56:02 2011] [debug] src/mod_auth_kerb.c(1110): [client xx.xxx.xxx.xxx] kerb_authenticate_user_krb5pwd ret=401 user=(NULL) authtype=(NULL) When I try to kinit that user on the machine on which Apache is running, it works. I also checked that DNS lookups work, including reverse lookup. Who can tell me whats going?

    Read the article

  • Setting up dnsmasq for a local network

    - by WishCow
    Me, and a small group of developers have just moved to a new office, and I'd like to set up dnsmasq on our development server, so when we deploy web apps there, we don't have to edit our own hosts files. We have a router at 192.168.3.1 which we don't have access to. I figured I'd install a DNS server on the development box, and we all record it's IP as a secondary DNS server. Unfortunately I'm strugling to make this work. The name of the devel server is devbox, it's IP is 192.168.3.99, and it's running the latest Ubuntu Server (Karmic) My computer is running Ubuntu Desktop (Karmic) What I'd like to achieve Let's say I have three websites, website1, website2, website3, running on the development box. I'd like to access them by the urls: http://website1.devbox http://website2.devbox http://website3.devbox So I have configured Apache on the devel box, installed dnsmasq, and put the following lines into it's hosts file: 192.168.3.99 website1.devbox 192.168.3.99 website2.devbox 192.168.3.99 website3.devbox and edited my own resolv.conf file to include the devel box as a nameserver: nameserver 192.168.3.99 It's working fine, I can access the sites. The problem is that it doesn't scale well. I'd like all the domains ending with .devbox forwarded to the development box, and this is what I'm struggling with. I have tried putting 192.168.3.99 devbox into the hosts file, and editing the line in dnsmasq.conf: # Add local-only domains here, queries in these domains are answered # from /etc/hosts or DHCP only. local=/devbox/ But I cannot get it working. If I try any url that is not explicitly present in the development box's hosts file, the dns lookup fails. Is the local directive for something else? Am I looking at the wrong place?

    Read the article

  • Setting up dnsmasq for a local network

    - by WishCow
    Me, and a small group of developers have just moved to a new office, and I'd like to set up dnsmasq on our development server, so when we deploy web apps there, we don't have to edit our own hosts files. We have a router at 192.168.3.1 which we don't have access to. I figured I'd install a DNS server on the development box, and we all record it's IP as a secondary DNS server. Unfortunately I'm strugling to make this work. The name of the devel server is devbox, it's IP is 192.168.3.99, and it's running the latest Ubuntu Server (Karmic) My computer is running Ubuntu Desktop (Karmic) What I'd like to achieve Let's say I have three websites, website1, website2, website3, running on the development box. I'd like to access them by the urls: http://website1.devbox http://website2.devbox http://website3.devbox So I have configured Apache on the devel box, installed dnsmasq, and put the following lines into it's hosts file: 192.168.3.99 website1.devbox 192.168.3.99 website2.devbox 192.168.3.99 website3.devbox and edited my own resolv.conf file to include the devel box as a nameserver: nameserver 192.168.3.99 It's working fine, I can access the sites. The problem is that it doesn't scale well. I'd like all the domains ending with .devbox forwarded to the development box, and this is what I'm struggling with. I have tried putting 192.168.3.99 devbox into the hosts file, and editing the line in dnsmasq.conf: # Add local-only domains here, queries in these domains are answered # from /etc/hosts or DHCP only. local=/devbox/ But I cannot get it working. If I try any url that is not explicitly present in the development box's hosts file, the dns lookup fails. Is the local directive for something else? Am I looking at the wrong place?

    Read the article

  • Network Management Cable Labeling Techniques and their alternatives [closed]

    - by Alex
    Possible Duplicate: What is the most effective solution you used to label cables? Yes i know there are a lot of howtos and already answered questions about this topic, like this one: How do you organise the cables in your racks? Currently i am searching the web for different techniques (alternatives) for labeling the cables at the server racks and/or data centers. Unfortunately i do not have any experience with labeling/documentation of network cables in a large scale. As far as I could lookup by now the current labeling techniques are coloring and a self defined print-labeling technique (numbering, text) maybe also according to a standard which are usually used. I want to know if QR, RFID (ok RFID in a data center would be stupid due to the radio frequency wouldn't it be?), Barcodes or similar (??) have already been used by some administrators or why they did not consider such techniques at all? Too complicated (with QR scanner etc..) if you are in front of the cables and want to get quick feedback for what the cable is? What alternatives are out there? Advantages/Disadvantages? Best-Practice? I would appreciate any help on this topic, thank you! Regards, Alex

    Read the article

  • How to balance the root domain using NS records?

    - by Patrick McCurley
    I have two load balancers that balance incoming traffic across multiple data centers. These work fine. I can test them out by doing an 'nslookup mydomain.com xIP' I have now taken out DNS services with DYN.com to allow me to manage the DNS Zone file so that typing mydomain.com will ask my load balancers what the IP address is to resolve. Step 1 : the NS record for www. I set up A records (glue) for ns1 & ns2, then the corresponding NS record to delegate the DNS lookup to the balancers instead of DYN.com's nameservers. ns1.mydomain.com A [ip address of load balancer 1] ns2.mydomain.com A [ip address of load balancer 1] www.mydomain.com NS ns1.mydomain.com www.mydomain.com NS ns2.mydomain.com All is well - when I type www.mydomain.com, the requests get delegated to my load balancers who provide the IP address of the endpoint and the connect is made successfully. Step 2 : the NS record for root. This is where I run into problems. I need customers to be able to type 'mydomain.com' (without the www) and ALSO get delegated to the load balancers for the IP address. However - of the research I have done, and through the DYN control panel, it seems to be not allowed to provide an NS record for the root - as this overrides the default NS servers. How can i delegate both the root, and the www. to my load balancers?

    Read the article

  • Windows 2003 Active Directory Integrated DNS zone not registering non-domain computers

    - by Jeff Willener
    I'm not a networking guy by all means, I'm just a developer who dabbles enough to get into trouble and I'm there. So bear with me... :) At my office I have a Windows 2003 Domain Controller which also services DNS. On the domain I have a handful of computers and other misc. equipment/toys. For the DNS I only created a Forward Lookup Zone for my domain (mydomain.com). I run a lot of VM's so generally I have everything on the domain, however some of those VM's are not and only in a 'Workgroup'. I also have another laptop which belongs to another domain (otherdomain.com) which is here 100% but I use it for other purposes and has to belong to the otherdomain.com. With all that said, I have two questions: I have found any computer not on mydomain.com does not register it's IP address even though 'Register this connections address in DNS' is set to in the 'Advanced TCP/IP Settings' for the nic. Where have I messed this up? On the laptop which is registered on otherdomain.com, when I do a nslookup for a computer on mydomain.com (e.g. nslookup devbox1) it appends otherdomain.com as the suffix (e.g. queries devbox1.otherdomain.com). Same thing occurs if I use the fully qualified name. In the 'Advanced TCP/IP Settings' for that nic, I can 'Append these DNS suffixes' of mydomain.com but I fear that will hose my DNS lookups when I VPN to otherdomain.com. So what is the correct approach to resolve this issue? Do I add both mydomain.com and otherdomain.com in that order?

    Read the article

  • How to verify a self-signed certificate from another server using openssl?

    - by ntsue
    I am new to openssl and I am having some trouble verifying (from a client machine) an ftp server using ssl with a self-signed certificate. I generated the .cer file by going to my server in IIS and exporting the certificate without the private key. I believe that this is all that I should need on the client side, right? I use the following code to verify the certificate openssl verify ftp.cer and the error that I get back is error 20 at 0 depth lookup:unable to get local issuer certificate I tried this as well: openssl verify -CAfile ftp.cer ftp.cer but received the same error. From what I understand about SSL, this is happening because I have no chain of trust that connects to this server. By default, openssl did not install any trusted CAs and this is fine. I would just like to tell it to trust this server. I tried various tutorials telling me how to add a certificate authority, including this one here, however the instructions are for linux and include adding a symlink and I am trying to do this in windows. If anyone could provide any guidance on how to do this, or enlighten me if I am not understanding something correctly, I would greatly appreciate it. Thanks!

    Read the article

  • Delay NTP Initialisation, Cisco 877W, IOS 12.4(24)T1

    - by Mike Insch
    I have a Cisco 877W which I'm using for my home ADSL connection (and as a refresher in Cisco IOS). I've got a working config in-place with my PPPoA connection coming online correctly, and VLANs and other settings configured as I want them, but I can't crack the NTP configuration. For NTP, I have the following defined ntp server 0.uk.pool.ntp.org source Dialer0 ntp server 1.uk.pool.ntp.org source Dialer0 ntp server 2.uk.pool.ntp.org source Dialer0 ntp server 3.uk.pool.ntp.org source Dialer0 This setup works fine when issued in Global Configuration Mode when the Dialer0 interface (ATM0.1) is up. The configuration fails at startup though: Translating "1.uk.pool.ntp.org"...domain server (208.67.222.222) (208.67.220.220) ntp server 1.uk.pool.ntp.org source Dialer0 ^ % Invalid input detected at "^" marker. This is repeated for the other servers defined. Obviously the DNS lookup for the server(s) fails because the DNS servers cannot be accessed because the external interface is not yet online. Is there a way to delay the NTP configuration until afte the Dialer0 interface is fully initialised? Can the NTP commands be triggered by the Line Protocol on the Dialer0 interface transitioning to the up state? Alternatively, can the NTP commands be delayed for 5 minutes after the router has finished initialising? Any advice, or pointers to useful documentation or examples gratefully received ...

    Read the article

  • Windows clients unable to access Samba share on AD joined Linux box every 7 days

    - by Hassle2
    The problem: Every 7 days, 2 Windows Servers are unable to access a SMB/CIFS share. It will start working after a handful of hours. The environment: OpenFiler Linux box joined to 2003 AD Domain Foreground app on Win2003 server access the SMB/CIFS share with windows credentials Another process on Win2008 access the share via SQL Server with windows credentials The Samba version on the Linux box is 3.4.5. Security is set to ADS wbinfo and getent return back expected users and groups Does not look to be a double hop issue as it's always the 2 accounts, regardless of the calling user. There is a DNS entry in both forward and reverse lookup zone for the linux box The linux box's computer object in active directory shows that it was modified around/at the same time that the two clients started failing to access the share Trying to access the share via IP works when by name does not Rebooting the Windows server takes care of it (it's production and only restarted it once) Restarting smbd, winbind, nmbd had no effect Error in samba log for the client in question: smbd/sesssetup.c:342(reply_spnego_kerberos) Failed to verify incoming ticket with error NT_STATUS_LOGON_FAILURE! The Question: Does this look like the machine account password is changing (hence the AD object showing the updated modified date) or are the two windows clients unable to request a new ticket that works against this linux box?

    Read the article

  • Unable to get squid working for remote users

    - by Sean
    I am trying to setup squid 3.2.4, but I have not been able to get it working for remote users. Works fine locally. Unable to figure out what I am doing wrong... http_port 3128 transparent ssl-bump generate-host-certificates=on dynamic_cert_mem_cache_size=4MB cert=/usr/share/ssl-cert/myCA.pem refresh_pattern ^ftp: 1440 20% 10080 refresh_pattern ^gopher: 1440 0% 1440 refresh_pattern -i (/cgi-bin/|\?) 0 0% 0 refresh_pattern . 0 20% 4320 acl localnet src 10.0.0.0/8 # RFC 1918 possible internal network acl localnet src 172.16.0.0/12 # RFC 1918 possible internal network acl localnet src 192.168.0.0/16 # RFC 1918 possible internal network acl localnet src fc00::/7 # RFC 4193 local private network range acl localnet src fe80::/10 # RFC 4291 link-local (directly plugged) machines acl SSL_ports port 443 acl Safe_ports port 80 # http acl Safe_ports port 21 # ftp acl Safe_ports port 443 # https acl Safe_ports port 70 # gopher acl Safe_ports port 210 # wais acl Safe_ports port 1025-65535 # unregistered ports acl Safe_ports port 280 # http-mgmt acl Safe_ports port 488 # gss-http acl Safe_ports port 591 # filemaker acl Safe_ports port 777 # multiling http acl CONNECT method CONNECT http_access allow manager localhost http_access deny manager http_access deny !Safe_ports http_access allow localhost http_access allow localnet http_access allow all cache deny all via off forwarded_for off header_access From deny all header_access Server deny all header_access WWW-Authenticate deny all header_access Link deny all header_access Cache-Control deny all header_access Proxy-Connection deny all header_access X-Cache deny all header_access X-Cache-Lookup deny all header_access Via deny all header_access Forwarded-For deny all header_access X-Forwarded-For deny all header_access Pragma deny all header_access Keep-Alive deny all acl ip1 localip 1.1.1.90 acl ip2 localip 1.1.1.91 acl ip3 localip 1.1.1.92 acl ip4 localip 1.1.1.93 acl ip5 localip 1.1.1.94 tcp_outgoing_address 1.1.1.90 ip1 tcp_outgoing_address 1.1.1.91 ip2 tcp_outgoing_address 1.1.1.92 ip3 tcp_outgoing_address 1.1.1.93 ip4 tcp_outgoing_address 1.1.1.94 ip5 tcp_outgoing_address 1.1.1.90

    Read the article

  • Adding 2008 Server to 2008 Domain

    - by Phillip
    Hello, I'm trying to create a lab for testing before I deploy solutions, I'm no experienced IT Administrator, and therefore I come here for help. I'm running 2 Virtual Servers on the same machine on a local connection between those two. They'are able to ping each other. Their names is TSDATA1 and TSDATA2 where TSDATA1 is the Domain Controller. I am able to ping between those two, on both "ping TSDATA1" and "ping 10.0.0.1" which is the IP address of TSDATA1. The IP address of TSDATA2 is 10.0.0.2. I'm trying to join the domain with TSDATA2 both I'm getting this error when trying: Note: This information is intended for a network administrator. If you are not your network's administrator, notify the administrator that you received this information, which has been recorded in the file C:\Windows\debug\dcdiag.txt. The following error occurred when DNS was queried for the service location (SRV) resource record used to locate an Active Directory Domain Controller for domain tsdata.local: The error was: "DNS name does not exist." (error code 0x0000232B RCODE_NAME_ERROR) The query was for the SRV record for _ldap._tcp.dc._msdcs.tsdata.local Common causes of this error include the following: The DNS SRV records required to locate a AD DC for the domain are not registered in DNS. These records are registered with a DNS server automatically when a AD DC is added to a domain. They are updated by the AD DC at set intervals. This computer is configured to use DNS servers with the following IP addresses: 10.0.0.1 One or more of the following zones do not include delegation to its child zone: tsdata.local local . (the root zone) For information about correcting this problem, click Help. I've figured out it has something to do with DNS lookup, but I have no clue what to do. Can anyone help?

    Read the article

  • What is the correct mail set up for multiple domains on one server?

    - by newmarc
    I have a machine (centos 5) with one external ip address. On that machine I have many virtual hosts with a few different top level domain names and sub-domains under those eg. sub1.domain1.com sub2.domain1.com sub3.domain1.com sub1.domain2.com sub2.domain2.com sub1.domain3.com And so on... Alot of these different sites need to send mail as their corresponding domain (or second-level domain at least). I need to set up DKIM, SPF (but that's handled on the DNS) and rDNS lookup so the mail gets received. As I understand it, you can only have one rDNS entry per machine. I could set up a server for each top level domain, but I'm thinking that'll get expensive. What should I do here? Is there a way to have multiple rDNS lookups on one ip address? How do I setup DKIM signing for multiple domain names on the one machine? Are there any services out there that could handle this for me? Thanks for your help...

    Read the article

  • Cache updates when migrating DNS from one provider to another

    - by JohnCC
    This may be a Windows DNS specific question or a general DNS best practice question - I'm not sure! We migrated our 3rd party DNS provision from provider A to provider B. I noticed that our internal recursive windows DNS servers still had NS records cached for our domains pointing to provider A's servers, even though I changed the nameservers with our registrar several days ago, and even though selecting the properties of the cached records showed a TTL of 1 day. After 24 hours when the NS records in this cache have expired, will the DNS server go back to the TLD server for an update on the authority, or will it go by preference to dns1.providera.com since that is what it has cached? In this case I arranged to leave Provider A's servers up for a week to allow changes to propagate, so dns1.providera.com is still active and would still provide NS and SOA records that said that dns1.providera.com. was in charge of this domain. Given this fact, would the Windows DNS server ever go back to the TLD and pick up the authority changes, or would it just assume all was well and renew timestamps on its cached NS records? I wonder what would be the best approach to ensuring that caches pick this up. Should I:- (1) Leave Provider A's servers in place and active and wait for caches to catch up ... basically what we're doing now which seems to have issues - perhaps specifically for Windows servers, or perhaps more widely. (2) Leave Provider A's servers in place but change the NS and/or SOA information they provide to tell caches that new servers are in charge. (3) Remove Provider A's servers after 2*TTL to force remaining caches to update. The issue with (2) is that on Provider A's system I can't seem to change the NS or SOA information to anything other than their servers. The issue with (3) is that I'm not sure how a DNS server would behave in this case. When it couldn't reach the cached name servers, would it flush its cache and try a full recursive lookup, or would it just return an error, forcing the user to clear the cache manually? Thanks in advance!

    Read the article

  • Setting up Red Hat Enterprise Linux Server as a mail exchange server

    - by Syedur
    I am a Unix/Linux/Windows Server noob. So, keep that in mind before you throw your stones at my glass house. :P I have a Windows Server 2008 R2 machine that's acting as domain controller, Server A. It's also running a DNS server. I have a Red Hat Enterprise Linux Server 5.3, Server B that is intended for mail server. In order for the mail delivery to happen, I understand that I have to set an MX record on Server A and point it to Server B. Well, I did. I manually added a host name on Server A and pointed to Server B's IP address. Then I added an MX record and pointed it to the host name. That didn't do the trick. After taking the above steps, I used the "dig" command on Server B to lookup the MX record coming back from Server A and it wasn't what I was expecting. What am I doing wrong here? I have noticed that... my Windows machines that are joined to the domain (Server A) are listed under the host names. The machines that are not joined to the domain are not list. This is fine, I am not worried about this. What does concern me, do I have to join the Server B to domain in order for Server A to recognize as a valid host and forward the MX properly? If so, some simple steps on how to join Server B to the domain would also help.

    Read the article

  • Unable to ping domain.local, but can ping server.domain.local

    - by Force Flow
    I have a single windows 2008 server running active directory, group policy, and DNS. DHCP is running from the firewall (this is because there are multiple branch locations, and each location has its own firewall supplying DHCP. But, for this problem, the server and workstation are at the same location). On an XP workstation, if I try to visit \\domain.local or ping domain.local, the workstation can't find it. A ping returns Ping request could not find host domain.local. If I try to visit \\server or \\server.domain.local or ping server or server.domain.local, I'm able to connect normally. If I ping or visit domain.local on the server, I'm able to connect normally. A-Records are in place in the DNS service for server, domain.local, and server.domain.local. A reverse lookup zone also is enabled and PTR records are in place. If I wait 20-30 minutes, I am eventually able to ping and visit domain.local--but, when attempting to ping, it takes 30 second to return an IP address. I am also unable to join a new workstation to the domain during this wait period. If I try, the error message returned is "network path not found". Is there something I'm missing?

    Read the article

  • DNS, subdomain, and IPv6 -- possible to add subdomain.example.com NS record to an IPv6 host?

    - by mpbloch
    example.com is listed with a registrar -- specifically, answerable.com. I want to host a subdomain in-house, specifically home.example.com. I am using an ipv6 gateway, specifically gogo6, to have a public IPv6 address. The IP address looks like 2001:xxxx:xx47. Then http://[2001:xxxx:xx47] goes to my test site (an instance of IIS7). I can add a quad-A record for my primary site -- home.example.com AAAA 2001:xxxx:xx47. Then http//home.example.com loads correctly. Must I add an A or quad-A record for all sub.home.example.com to my answerable.com DNS manager for example.com? Or can I delegate DNS queries to *.home.example.com to the machine at [2001:xxxx:xx47]? I have tried to add a AAAA record for tunnel.example.com to [2001:xxxx:xx47], and then add an NS entry for home.example.com to tunnel.example.com, but browsing then results in "DNS lookup error" from my browser. Is this a configurable scenario? Can DNS for subdomain only be delegated to IPv4 addresses?

    Read the article

  • Possible DNS issue after a reinstall of Windows Server 2000 (get off my lawn)

    - by cop1152
    I just replaced a drive on a Win2000 Server that replicates AD and issues out DHCP at one of our offices. I successfully joined it to the domain, setup range of IP's, etc, but am still having issues. I cannot RDC to it with name or IP. I can ping it, browse to it with Windows Explorer, and remote to it with some other software, but not RDC. The other issue is this: Users are unable to authenticate on it. They receive the message 'username or password incorrect' (or something like that). Changes made on the main domain controller seem to take forever to trickle down. The most significant entry in the DNS Server Log is Event ID 7062: The DNS Server Encountered a Packet Addressed to Itself. At least, I think its significant. The Directory Services Log shows numerous Event IDs 1265: The attempt to establish a replication link with parameters failed with the following status: The DSA operation is unable to proceed because of a DNS lookup failure. Does this make any sense to anyone? I feel like its something very simple that I am overlooking. Thanks in advance.

    Read the article

  • Firefox is very slow when establish SSL sessions

    - by yanglei
    Using wireshark, I discovered that Firefox v3.0 gets stuck every time before "client key exchange, change cipher spec" stage when establishing a SSL session. Specifically, it takes 0.8~1.8 second before Firefox send "Client Key Exchange" request. This is unacceptable since our application is HTTPS only. I tested this on IE6 and IE8, both works well. Any clues? [Update] Finally, I found the reason of 1 ~ 2 seconds stuck by displaying all captured packets in Wireshark. After the "server hello" stage, Firefox makes a request to ocsp.verisign.com combined with an additional DNS lookup for that domain. Firefox must wait the revocation status from OCSP before entering the next stage of SSL. Depends on whether DNS cache is in effect, this process takes 1 ~ 2 seconds. A interesting observation is that the IP packet contains "client key exchange" has a high possibility to get lost and thus a TCP retransmission is necessary. When this happens, the process can take 3 seconds at worst. I'm not sure if this is a coincidence or a bug. Anyway, here is the result from Wireshark: (delta-time) 0.369296 src-ip dst-ip TCP [ACK] Seq=161 Ack=2741 Win=65340 Len=0 2.538835 src-ip dst-ip TLSv1 Client Key Exchange, Change Cipher Spec, Finished 2.987034 src-ip dst-ip TLSv1 [TCP Retransmission] Client Key Exchange, Change Cipher Spec, Finished The difference between Firefox and IE is this: Firefox 3 enables OCSP checking by default where as IE only supports it. So, there is no problem with both IE6 and IE8. This is indeed a "certificate revoke" problem. Thanks

    Read the article

  • Command line solution for removing parts from a binary file?

    - by zsero
    I have a binary file and I would like to remove parts from. By removing I mean deleting those parts and thus making the file's size smaller. The parts would be between two ASCII strings. So, for example the file would look like this ........ start ABCD end ..... start EFGH end ..... start IJKL end ........... So in this file, I would like to search for strings "start" and "end" and remove the parts between them. The way I think I can do it is to lookup all the locations for "start" and "end" calculate ranges from that delete those parts Now I am using some GUI based Hex editor and I use the "Search All", "Select Range" and "Delete" commands, but I am sure it would be possible to solve it using some powerful command line hex/text editors. Do you know any solution for this problem which doesn't require using a GUI for looking up, copy & paste on clipboard, select range and delete commands but is just a few lines of command line? I am interested ini both Linux shell scripts or using some command line hex editors under Windows, or even Python scrips are welcome. Do you think it is possible to solve this problem just by a simple Regex replace? Are there any regex replace util which handles binary files well?

    Read the article

  • Uninstall Perl 5.10 and Install 5.8 on Ubuntu 10.04

    - by user48848
    I was using Ubuntu 8.04 with installed Perl 5.8.8. I had installed Bugzilla 3.4.4 with some custom scripts and it was working fine. I had to upgrade Ubuntu from 8.04 to 10.04 and automatically Perl is also upgraded from Perl 5.8 to 5.10. Now, accessing Bugzilla displays an error message related to Perl module. While trying to run checksetup.pl, I am getting the following error message: root@cvsnew:/var/www/bugzilla-3.4# perl checksetup.pl * This is Bugzilla 3.4.3 on perl 5.10.1 * Running on Linux 2.6.32-24-generic-pae #39-Ubuntu SMP Wed Jul 28 07:39:26 UTC 2010 Checking perl modules... Checking for CGI.pm (v3.33) ok: found v3.48 perl: symbol lookup error: lib/i486-linux-gnu-thread-multi/auto/Digest/SHA/SHA.so: undefined symbol: Perl_Tstack_sp_ptr Accessing Bugzilla throws : "500 Internal Server Error". I explored this issue and found that this issue has come up because upgrading Ubuntu upgrades Perl 5.8 to 5.10 automatically. It seems like Perl 5.10.1 isn't binary compatible with the previous. Now, I want to uninstall Perl 5.10.1 and Install Perl 5.8.8 on my Ubuntu 10.04 box. I will appreciate if someone has already done that or share the required steps/commands to do it.

    Read the article

  • Windows 7 x64 wired connection problem. IP, gateway, dns assigned, can't ping. Network detected as "Network"

    - by Emil Lerch
    I am having a problem connecting to a specific wired network with my Latitude E6410 laptop. Other wired networks seem to work fine, but this one does not. I have a coworker with me with the same Intel 82577LM Gigabit Network card, and he can connect just fine. I've updated to the latest Intel drivers (11.8.75.0) and am not using Pro Set. I obtain all DHCP information just fine (IP, netmask, DNS server, default gateway). I cannot ping anything (internal or on the Internet - I tried pinging Google's public DNS servers by IP 8.8.8.8), nor can I get answers to any DNS queries through NS Lookup. Windows troubleshooting says everything is fine, but I can't get DNS responses. I've seen issues like this in the past that were related to link speed/duplex autonegotiaion failures, so I've tried manually setting link speed/duplex to all values one by one with no success. My coworker is using all default settings, so he is just using autonegotiate. Any ideas of other things to try?

    Read the article

< Previous Page | 75 76 77 78 79 80 81 82 83 84 85 86  | Next Page >