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  • Long access time for static web page on virtual machine

    - by Karol
    My setup Windows 7 on workstation that I use at work (with domain) and home (no domain) Virtual machine (VMWare) that runs Arch Linux (I will call it just "Linux") with network interface in bridged mode. Linux serves web pages with Nginx. IP address of Linux machine is 192.168.0.16 and is added to C:\windows\system32\drivers\etc\hosts: 192.168.0.16 bridged bri IP address of Windows workstation is added to /etc/hosts: 192.168.0.10 workstation I can add more details to my setup description (I am not sure what is relevant). The question Often (but not always) it takes long time for a web browser (Firefox) to open static web page served by Linux. I am sure it is not a performance issue. To be more specific: it takes about ~20 seconds to resolve(?) the address http://bridged for a web browser. Additionally I have just installed samba service and noticed similar problem, so it is not specific to browser & http. Initial access for samba shares also takes long time.

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  • LYNC / OCS... problems getting edge server working.

    - by TomTom
    New setup Lync 2010 (i.e. OCS 2010). I have serious problems getting my edge system going. Internally things work fine. Externally I am stuck. I have used the tester at https://www.testocsconnectivity.com/ and it also fails. NOTE: I use the domain xample.com / xample.local here just as example. Here is the setup. I have 2 internal hosts (lync.xample.local, edge.xample.local). edge.xample.com is also correctly in dns. and points to the edge.xample.local external assigned ip address (external interface). Externally, I have the following dns entries: edge.xample.com _sip._tcp - edge.xample.com 443 _sipfederationtls._tcp - edge.xample.com 5061 _sipinternaltls._tcp - lync.xample.local 5061 _sip._tls - edge.xample.com 443 My problem is that the ocs connection test always ends up trying to contact lync.xample.local (i.e. the internal address) when connecting to [email protected]. The error is: Attempting to Resolve the host name lync.xample.local in DNS. This shows me it clearly manages to connect to SOMETHING, but it does either fall through to the _sipinternaltls._tcp entry, OR it does get that internal entry wrongly from the edge system. Am I missing some entries or have some wrong?

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  • Asterisk terminating outbound call when picked up, sends 'BYE' message

    - by vo
    I'm running Asterisk 1.6.1.10 / FreePBX 2.5.2.2 and I've got an outbound trunk setup. Everything use to work fine until recently (perhaps due to upgrade to FC12 or other things I'm not sure). Anyway the setup does not appear to have issues registering and setting up the call, RTP packets go both ways and you can hear the ringing from the other side. However it appears that when the call is picked up or thereabouts, the incoming RTP packets cease. Upon closer inspection with Wireshark, there are these particular packets that seem to be the cause: trunk->asterisk SIP/SD Status: 200 OK, with session description asterisk->trunk SIP Request: ACK sip:<phone>@trunk:6889 asterisk->trunk SIP Request: BYE sip:<phone>@trunk:6889 [..about a dozzen RTP packets in/outbound..] trunk->asterisk SIP Status: 200 OK, CSeq: 104 Bye [..outbound RTP continues, phone is silent..] Then the inbound RTP packets cease, however the asterisk logs dont show any activity at this point. The last entry reads 'SIP/ is answered SIP/'. Then when you hangup the extension, you get asterisk->trunk SIP Request: BYE sip:<phone>@trunk:6889 trunk->asterisk SIP Status: 481 Call Leg/Transaction does not exist My trunk peer settings in FreePBX are: username=<user> fromuser=<user> canreinvite=no type=friend secret=<pass> qualify=no [qualify yes produces 401/forbidden messages] nat=yes insecure=very host=<sip trunk gateway> fromdomain=<sip trunk gateway> disallow=all context=from-pstn allow=ulaw dtmfmode=inband Under sip_general_custom.conf i have stunaddr=stun.xten.com externrefresh=120 localnet=192.168.1.1/255.255.255.0 nat=yes Whats causing Asterisk to prematurely end the call and still think the call is in progress? I have no idea where to look next.

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  • Outlook 2007/2010 autodiscovering old Exchange info

    - by Dan
    I currently have an Exchange setup as follows: two Exchange 2003 servers clustered together set up as the current mailbox stores, one Exchange 2003 setup as a frontend, one Exchange 2007 set up as a frontend (was set up for testing by my predecessor, never really used intentionally), and now four Exchange 2010 servers - two mailboxes in a DAG and two with Hub/CAS. Everything seems to be working fine with one exception - Outlook 2007/2010 clients are still autodiscovering the test 2007 frontend and not the 2010 CAS array. I know this because there's an expired cert on the 2007 box so the client displays a cert error when you attempt to autocreate the outlook profile. From what I've read, there is an SCP (Service Connection Point) in AD that is pointing to the old server and it is getting returned first, causing Outlook to try it first. How can I prevent Outlook from even attempting to connect to this 2007 box from now on? http://www.msexchange.org/articles_tutorials/exchange-server-2010/management-administration/exchange-autodiscover.html When Outlook 2007 is installed on a domain joined workstation then the Outlook client will query Active Directory for the Autodiscover information. Active Directory will return a list of SCP’s and the Outlook client will automatically select the first SCP in this list. Using the information found in the SCP the Outlook client will contact the Client Access Server for its configuration information and the Outlook client will be configured automatically.

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  • What do I need to do to set my computer as Default Gateway?

    - by Vaibhav
    We are trying to put together a box with dual LAN cards (let's say Outer and Inner), where the Inner LAN card is supposed to act as a default gateway on the network it is connected to. This box is running Ubuntu. The basic purpose for this box is to take messages generated on the inner network, do some work with them and forward them out the Outer LAN card to a server. The inner network is completely isolated with simply a regular switch connecting the Inner LAN Card with two other boxes. These other boxes either throw out multi-cast messages (which the Inner LAN Card is listening to), or send out unicast messages meant for the server which is not on this inner network. So, we need the Inner LAN Card to act as a default gateway, where these unicast messages will then be sent, and the code on the dual-LAN Card box can then intercept and forward these messages to the server. Question: 1. How do we setup the LAN Card to be default gateway (does it need some configuration on Ubuntu)? 2. Once we have this setup, is it a simple matter of listening to the interface to intercept the incoming messages? Any help (pointers in the right direction) is appreciated. Thanks.

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  • CentOS 6 LEMP update - dependency error issue

    - by Latheesan Kanes
    I have setup a LEMP server following the guide Install Nginx/PHP-FPM on Fedora 20/19, CentOS/RHEL 6.5/5.10. It's been a while since I did the setup, so I wanted to grab the latest updates from REMI repository. I ran the following command: yum --enablerepo=remi,remi-php55 update I now get these dependency related errors: # yum --enablerepo=remi update Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * base: mirror.nl.leaseweb.net * epel: mirror.1000mbps.com * extras: mirror.nl.leaseweb.net * remi: remi.schlundtech.de * updates: centos.mirror1.spango.com Setting up Update Process Resolving Dependencies --> Running transaction check ---> Package chkconfig.x86_64 0:1.3.49.3-2.el6 will be updated ---> Package chkconfig.x86_64 0:1.3.49.3-2.el6_4.1 will be an update ---> Package glibc.x86_64 0:2.12-1.107.el6_4.4 will be updated ---> Package glibc.x86_64 0:2.12-1.107.el6_4.5 will be an update ---> Package glibc-common.x86_64 0:2.12-1.107.el6_4.4 will be updated ---> Package glibc-common.x86_64 0:2.12-1.107.el6_4.5 will be an update ---> Package gnupg2.x86_64 0:2.0.14-4.el6 will be updated ---> Package gnupg2.x86_64 0:2.0.14-6.el6_4 will be an update ---> Package iputils.x86_64 0:20071127-17.el6_4 will be updated ---> Package iputils.x86_64 0:20071127-17.el6_4.2 will be an update ---> Package kernel.x86_64 0:2.6.32-358.23.2.el6 will be installed ---> Package kernel-firmware.noarch 0:2.6.32-358.18.1.el6 will be updated ---> Package kernel-firmware.noarch 0:2.6.32-358.23.2.el6 will be an update ---> Package libgcrypt.x86_64 0:1.4.5-9.el6_2.2 will be updated ---> Package libgcrypt.x86_64 0:1.4.5-11.el6_4 will be an update ---> Package mysql-libs.x86_64 0:5.1.69-1.el6_4 will be updated --> Processing Dependency: libmysqlclient.so.16()(64bit) for package: 2:postfix-2.6.6-2.2.el6_1.x86_64 --> Processing Dependency: libmysqlclient.so.16(libmysqlclient_16)(64bit) for package: 2:postfix-2.6.6-2.2.el6_1.x86_64 ---> Package mysql-libs.x86_64 0:5.5.34-1.el6.remi will be an update ---> Package nginx.x86_64 0:1.4.2-1.el6.ngx will be updated ---> Package nginx.x86_64 0:1.4.3-1.el6.ngx will be an update ---> Package php-pear.noarch 1:1.9.4-20.el6.remi will be updated ---> Package php-pear.noarch 1:1.9.4-23.el6.remi will be an update ---> Package php-pecl-jsonc.x86_64 0:1.3.2-1.el6.remi.1 will be updated ---> Package php-pecl-jsonc.x86_64 0:1.3.2-2.el6.remi will be an update --> Processing Dependency: php(zend-abi) = 20100525-x86-64 for package: php-pecl-jsonc-1.3.2-2.el6.remi.x86_64 --> Processing Dependency: php(api) = 20100412-x86-64 for package: php-pecl-jsonc-1.3.2-2.el6.remi.x86_64 ---> Package php-pecl-mongo.x86_64 0:1.4.3-1.el6.remi.1 will be updated ---> Package php-pecl-mongo.x86_64 0:1.4.4-1.el6.remi will be an update --> Processing Dependency: php(zend-abi) = 20100525-x86-64 for package: php-pecl-mongo-1.4.4-1.el6.remi.x86_64 --> Processing Dependency: php(api) = 20100412-x86-64 for package: php-pecl-mongo-1.4.4-1.el6.remi.x86_64 ---> Package php-pecl-sqlite.x86_64 0:2.0.0-0.3.svn313074.el6.remi.5 will be updated ---> Package php-pecl-sqlite.x86_64 0:2.0.0-0.4.svn332053.el6.remi.5.4 will be an update --> Processing Dependency: php(zend-abi) = 20100525-x86-64 for package: php-pecl-sqlite-2.0.0-0.4.svn332053.el6.remi.5.4.x86_64 --> Processing Dependency: php(api) = 20100412-x86-64 for package: php-pecl-sqlite-2.0.0-0.4.svn332053.el6.remi.5.4.x86_64 ---> Package postgresql-libs.x86_64 0:8.4.13-1.el6_3 will be updated ---> Package postgresql-libs.x86_64 0:8.4.18-1.el6_4 will be an update ---> Package remi-release.noarch 0:6-2.el6.remi will be updated ---> Package remi-release.noarch 0:6.4-1.el6.remi will be an update ---> Package rsync.x86_64 0:3.0.6-9.el6 will be updated ---> Package rsync.x86_64 0:3.0.6-9.el6_4.1 will be an update ---> Package selinux-policy.noarch 0:3.7.19-195.el6_4.12 will be updated ---> Package selinux-policy.noarch 0:3.7.19-195.el6_4.18 will be an update ---> Package selinux-policy-targeted.noarch 0:3.7.19-195.el6_4.12 will be updated ---> Package selinux-policy-targeted.noarch 0:3.7.19-195.el6_4.18 will be an update ---> Package setup.noarch 0:2.8.14-20.el6 will be updated ---> Package setup.noarch 0:2.8.14-20.el6_4.1 will be an update ---> Package tzdata.noarch 0:2013c-2.el6 will be updated ---> Package tzdata.noarch 0:2013g-1.el6 will be an update ---> Package xinetd.x86_64 2:2.3.14-38.el6 will be updated ---> Package xinetd.x86_64 2:2.3.14-39.el6_4 will be an update --> Running transaction check ---> Package compat-mysql51.x86_64 0:5.1.54-1.el6.remi will be installed ---> Package php-pecl-jsonc.x86_64 0:1.3.2-2.el6.remi will be an update --> Processing Dependency: php(zend-abi) = 20100525-x86-64 for package: php-pecl-jsonc-1.3.2-2.el6.remi.x86_64 --> Processing Dependency: php(api) = 20100412-x86-64 for package: php-pecl-jsonc-1.3.2-2.el6.remi.x86_64 ---> Package php-pecl-mongo.x86_64 0:1.4.4-1.el6.remi will be an update --> Processing Dependency: php(zend-abi) = 20100525-x86-64 for package: php-pecl-mongo-1.4.4-1.el6.remi.x86_64 --> Processing Dependency: php(api) = 20100412-x86-64 for package: php-pecl-mongo-1.4.4-1.el6.remi.x86_64 ---> Package php-pecl-sqlite.x86_64 0:2.0.0-0.4.svn332053.el6.remi.5.4 will be an update --> Processing Dependency: php(zend-abi) = 20100525-x86-64 for package: php-pecl-sqlite-2.0.0-0.4.svn332053.el6.remi.5.4.x86_64 --> Processing Dependency: php(api) = 20100412-x86-64 for package: php-pecl-sqlite-2.0.0-0.4.svn332053.el6.remi.5.4.x86_64 --> Finished Dependency Resolution Error: Package: php-pecl-jsonc-1.3.2-2.el6.remi.x86_64 (remi) Requires: php(zend-abi) = 20100525-x86-64 Installed: php-common-5.5.4-1.el6.remi.x86_64 (@remi-test) php(zend-abi) = 20121212-64 Available: php-common-5.3.3-22.el6.x86_64 (base) php(zend-abi) = 20090626 Available: php-common-5.3.3-23.el6_4.x86_64 (updates) php(zend-abi) = 20090626 Available: php-common-5.4.21-1.el6.remi.x86_64 (remi) php(zend-abi) = 20100525-x86-64 Available: php-common-5.4.21-2.el6.remi.x86_64 (remi) php(zend-abi) = 20100525-x86-64 Error: Package: php-pecl-mongo-1.4.4-1.el6.remi.x86_64 (remi) Requires: php(zend-abi) = 20100525-x86-64 Installed: php-common-5.5.4-1.el6.remi.x86_64 (@remi-test) php(zend-abi) = 20121212-64 Available: php-common-5.3.3-22.el6.x86_64 (base) php(zend-abi) = 20090626 Available: php-common-5.3.3-23.el6_4.x86_64 (updates) php(zend-abi) = 20090626 Available: php-common-5.4.21-1.el6.remi.x86_64 (remi) php(zend-abi) = 20100525-x86-64 Available: php-common-5.4.21-2.el6.remi.x86_64 (remi) php(zend-abi) = 20100525-x86-64 Error: Package: php-pecl-jsonc-1.3.2-2.el6.remi.x86_64 (remi) Requires: php(api) = 20100412-x86-64 Installed: php-common-5.5.4-1.el6.remi.x86_64 (@remi-test) php(api) = 20121113-64 Available: php-common-5.3.3-22.el6.x86_64 (base) php(api) = 20090626 Available: php-common-5.3.3-23.el6_4.x86_64 (updates) php(api) = 20090626 Available: php-common-5.4.21-1.el6.remi.x86_64 (remi) php(api) = 20100412-x86-64 Available: php-common-5.4.21-2.el6.remi.x86_64 (remi) php(api) = 20100412-x86-64 Error: Package: php-pecl-sqlite-2.0.0-0.4.svn332053.el6.remi.5.4.x86_64 (remi) Requires: php(zend-abi) = 20100525-x86-64 Installed: php-common-5.5.4-1.el6.remi.x86_64 (@remi-test) php(zend-abi) = 20121212-64 Available: php-common-5.3.3-22.el6.x86_64 (base) php(zend-abi) = 20090626 Available: php-common-5.3.3-23.el6_4.x86_64 (updates) php(zend-abi) = 20090626 Available: php-common-5.4.21-1.el6.remi.x86_64 (remi) php(zend-abi) = 20100525-x86-64 Available: php-common-5.4.21-2.el6.remi.x86_64 (remi) php(zend-abi) = 20100525-x86-64 Error: Package: php-pecl-mongo-1.4.4-1.el6.remi.x86_64 (remi) Requires: php(api) = 20100412-x86-64 Installed: php-common-5.5.4-1.el6.remi.x86_64 (@remi-test) php(api) = 20121113-64 Available: php-common-5.3.3-22.el6.x86_64 (base) php(api) = 20090626 Available: php-common-5.3.3-23.el6_4.x86_64 (updates) php(api) = 20090626 Available: php-common-5.4.21-1.el6.remi.x86_64 (remi) php(api) = 20100412-x86-64 Available: php-common-5.4.21-2.el6.remi.x86_64 (remi) php(api) = 20100412-x86-64 Error: Package: php-pecl-sqlite-2.0.0-0.4.svn332053.el6.remi.5.4.x86_64 (remi) Requires: php(api) = 20100412-x86-64 Installed: php-common-5.5.4-1.el6.remi.x86_64 (@remi-test) php(api) = 20121113-64 Available: php-common-5.3.3-22.el6.x86_64 (base) php(api) = 20090626 Available: php-common-5.3.3-23.el6_4.x86_64 (updates) php(api) = 20090626 Available: php-common-5.4.21-1.el6.remi.x86_64 (remi) php(api) = 20100412-x86-64 Available: php-common-5.4.21-2.el6.remi.x86_64 (remi) php(api) = 20100412-x86-64 You could try using --skip-broken to work around the problem You could try running: rpm -Va --nofiles --nodigest Any idea how to solve these errors? Am I missing a package? or is this a bug?

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  • Ensure Mac's get correct machine name from DHCP?

    - by Greg Whitfield
    I have a problem in our network where our Mac's occasionally get given the wrong machine name while, I guess, getting a new DHCP lease. The DHCP servers are Windows based - the bulk of our network is Windows, but we have some Linux machines and an increasing number of Macs. The problem specifics is that occasionally a Mac will take on the name of another machine in the network. For example, I have a new Macbook Pro. In the OSX setup is gets called "gomez", and initially starts up on the network with that name without any problems. But after a few days when the machine was restarted (it had several restarts in the meantime), it ended up being called "florrie", which is actually the name of another machine in another part of the network. All network ops work fine, and indeed you don't notice most of the time - it's only when you run apps like Perforce that require the hostname that you get problems. I'm sorry I don't have more info than that, but if I know what to look for I can dig out some more facts. Or any hints on checking the network setup would be useful.

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  • Have only read access to Samba

    - by Tahir Malik
    Hi I've been struggling a lot with Samba on Centos 5.5 lately. I develop in Windows 7 and send files through scp (ant task), but it's to slow and wanted to setup thoroughly samba. After installing and following some guides I've done the following: Disable firewall (iptables) Disable SelLinux (didn't do that at the start, but didn't help either) setup my smbusers file to map my windows user to root (root = "Tahir Malik" -- works) added a current user mitco to the sambapassdb with the command smbpasswd -a mitco , because the windows user had only read access So both the users have read access to my share. Here is my smb.conf snippit: [global] workgroup = MITCO server string = Samba Server Version %v netbios name = centos ; interfaces = lo eth0 192.168.12.2/24 192.168.13.2/24 ; hosts allow = 127. 192.168.12. 192.168.13. [alf4] comment = Alfresco 4 path = /opt read only = no valid users = mitco, mitco force user = root force group = root admin users = mitco , mitco writeable = yes ; browseable = yes What also maybe important is that the /opt is only writable by root, but that shouldn't matter because I use the force user and group or admin users. The log file : [2012/09/29 07:43:44, 0] smbd/server.c:main(958) smbd version 3.0.33-3.39.el5_8 started. Copyright Andrew Tridgell and the Samba Team 1992-2008 [2012/09/29 07:43:59, 1] smbd/service.c:make_connection_snum(1085) mitco-tahir (192.168.13.1) connect to service alf4 initially as user root (uid=0, gid=0) (pid 5228)

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  • Dynamic subdomain routing

    - by Nader
    Hi everyone, I asked this question over at stackoverflow, but got very few views: http://stackoverflow.com/questions/2284917/route-web-requests-to-different-servers-based-on-subdomain Perhaps it's more applicable to this crowd. Here it is again for convenience: I have a platform where a user can create a new website using a subdomain. There will be thousands of these, eg abc.mydomain.com, def.mydomain.com . Hopefully if we are successful hundreds of thousands. I need to be able to route these domains to a different IPs to point at a particular app server. I have this mapping in a database right now. What are the best practices and recommended technologies here? I see a couple options: Have DNS setup with a wildcard CNAME entry so that all requests go to a single IP where perhaps two machines using heartbeat (for failover) know how to look up the IP in the database and then do an http redirect to the appropriate app server. This seems clunky and slow to me. Run my own DNS server that can be programatically managed such that when a new site is created a DNS entry is added. We also move sites around to different app servers, so I would need to be able to update DNS entries in close to real time. Thoughts anyone? Thanks. Update2: I've setup external wildcard DNS pointing at an HAProxy web server whose job it is to route requests to backend servers. The mapping is stored in our internal PowerDNS server. Question now is how to get the HAProxy server (or another) to use the value of the internal DNS and not some config file or access list? – Update: Based on some suggestions below, it seems like reverse-proxy server(s) is the way to go. As I'll be rebalancing the domain-server mapping, these need to work instantly and the TTL on a DNS solution could be a problem. Any recommendations on software to use considering this domain-IP data is stored in a DB, and I'll need this to be performant?

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  • Performance: Nginx SSL slowness or just SSL slowness in general?

    - by Mauvis Ledford
    I have an Amazon Web Services setup with an Apache instance behind Nginx with Nginx handling SSL and serving everything but the .php pages. In my ApacheBench tests I'm seeing this for my most expensive API call (which cache via Memcached): 100 concurrent calls to API call (http): 115ms (median) 260ms (max) 100 concurrent calls to API call (https): 6.1s (median) 11.9s (max) I've done a bit of research, disabled the most expensive SSL ciphers and enabled SSL caching (I know it doesn't help in this particular test.) Can you tell me why my SSL is taking so long? I've set up a massive EC2 server with 8CPUs and even applying consistent load to it only brings it up to 50% total CPU. I have 8 Nginx workers set and a bunch of Apache. Currently this whole setup is on one EC2 box but I plan to split it up and load balance it. There have been a few questions on this topic but none of those answers (disable expensive ciphers, cache ssl, seem to do anything.) Sample results below: $ ab -k -n 100 -c 100 https://URL This is ApacheBench, Version 2.3 <$Revision: 655654 $> Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ Licensed to The Apache Software Foundation, http://www.apache.org/ Benchmarking URL.com (be patient).....done Server Software: nginx/1.0.15 Server Hostname: URL.com Server Port: 443 SSL/TLS Protocol: TLSv1/SSLv3,AES256-SHA,2048,256 Document Path: /PATH Document Length: 73142 bytes Concurrency Level: 100 Time taken for tests: 12.204 seconds Complete requests: 100 Failed requests: 0 Write errors: 0 Keep-Alive requests: 0 Total transferred: 7351097 bytes HTML transferred: 7314200 bytes Requests per second: 8.19 [#/sec] (mean) Time per request: 12203.589 [ms] (mean) Time per request: 122.036 [ms] (mean, across all concurrent requests) Transfer rate: 588.25 [Kbytes/sec] received Connection Times (ms) min mean[+/-sd] median max Connect: 65 168 64.1 162 268 Processing: 385 6096 3438.6 6199 11928 Waiting: 379 6091 3438.5 6194 11923 Total: 449 6264 3476.4 6323 12196 Percentage of the requests served within a certain time (ms) 50% 6323 66% 8244 75% 9321 80% 9919 90% 11119 95% 11720 98% 12076 99% 12196 100% 12196 (longest request)

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  • How can I uninstall Broadcom Bluetooth software that won't disappear in Windows XP?

    - by T. Webster
    My situation is similar to this question for Windows 7, except my OS is Windows XP SP3. I have recently realized I made the mistake of buying a Bluetooth adapter and installing the Broadcom/Widcomm Bluetooth stack driver software. Now that I know that the software is no good, I want to uninstall it. Then I'll install the Toshiba stack for the Cirago adapter. Right now, when I double-click on the setup.exe file that came with the Cirago driver, nothing happens (it doesn't start setup). I've attempted to uninstall all Bluetooth driver software in Device Manager, and I don't see any remnants of any Bluetooth drivers there. But I do see that the little Bluetooth icon still persists: I don't see anything about Bluetooth, Broadcom, or Widcomm in Add/Remove Programs. I don't see any folder names Broadcom or Widcomm in Program Files folder, either. But I do see that Broadcom does show up in the registry with respect to Bluetooth, as shown here. I also renamed every file in C:\Windows\inf that starts with "bth" so that it ends with ".old". What should I do now to completely wipe this persistent Broadcom Bluetooth software off my computer?

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  • Workstations cannot see new MS Server 2008 domain, but can access DHCP. (solved)

    - by Radix
    The XP Pro workstations do not see the new replacement domain upon boot; they only see their cached entry for the old (server 2003) domain controller. The old_server is not connected to the network. I have DHCP working with the same scope as the old_server. In my "before-asking" search for a solution I came across the following two articles, and I recall doing things as suggested by the articles. http://www.windowsreference.com/windows-server-2008/how-to-setup-dhcp-server-in-windows-server-2008-step-by-step-guide/ http://www.windowsreference.com/windows-server-2008/step-by-step-guide-for-windows-server-2008-domain-controller-and-dns-server-setup/ The only possible issue is: I was under the impression that the domain netbios needed to match the DC's netbios. The DC netbios is city01 while the domain's FQDN is city.domain.org (I think this is mistaken and should have been just domain.org) But, the second link led me to a post which I believe answers my question. I did as they instructed by opening Local Area Connection Properties, then selecting TCP/IPv4 and setting the sole preferred DNS server to the local hosts static IP (10.10.1.1). Search for "Your problems should clear up" for the post I'm referencing: http://forums.techarena.in/active-directory/1032797.htm Have I misunderstood their instructions? I am hoping to reach the point where I can define users and user groups. Also, does TechNet have a single theoretical overview document I could read. I really don't like treating comps as magic. I will be watching this closely and will quickly answer any questions. If I've left anything out it is because I did not know it was needed. PS: I am loath to ask obviously basic questions, but I am tired and wish to fix this before tomorrow. Also, this is my first server installation, thank you for your help.

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  • why sendmail resolves to ISP domain?

    - by digital illusion
    I wish to setup a local mail server for debugging purposes using fedora 15 I set up sendmail, but there is a problem. When I'm not connected to the internet, the local mail server delivers correctly (to localhost). And in /var/log/mail I see that I correctly delivered a mail to [email protected]: Jun 21 18:24:56 PowersourceII sendmail[6019]: p5LGOttt006019: [email protected], size=328, class=0, nrcpts=1, msgid=<[email protected]>, relay=adriano@localhost Jun 21 18:24:56 PowersourceII sendmail[6020]: p5LGOuSV006020: from=<[email protected]>, size=506, class=0, nrcpts=1, msgid=<[email protected]>, proto=ESMTP, daemon=MTA, relay=PowersourceII.localdomain [127.0.0.1] Jun 21 18:24:56 PowersourceII sendmail[6019]: p5LGOttt006019: [email protected], [email protected] (500/500), delay=00:00:01, xdelay=00:00:00, mailer=relay, pri=30328, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (p5LGOuSV006020 Message accepted for delivery) When I connect, networkmanager fills in /etc/resolv.conf with: domain fastwebnet.it search fastwebnet.it localdomain nameserver 62.101.93.101 nameserver 83.103.25.250 Now sendmail does not work any longer and tries to send messages to my ISP domain, as seen in the log: Jun 21 18:40:02 PowersourceII sendmail[6348]: p5LGe1LV006348: [email protected], [email protected] (500/500), delay=00:00:01, xdelay=00:00:01, mailer=relay, pri=30327, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (p5LGe10n006352 Message accepted for delivery) Jun 21 18:40:02 PowersourceII sendmail[6354]: p5LGe10n006352: to=<[email protected]>, delay=00:00:01, xdelay=00:00:00, mailer=esmtp, pri=120651, relay=mx3.fastwebnet.it. [85.18.95.21], dsn=5.1.1, stat=User unknown As you can see, it tries to deliver a mail to [email protected], and fails The setup is working under other ISPs. How can I avoid the fastweb ISP DNS relay? Thank you

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  • ESX 4.0 space: DASD, NAS, or ?

    - by thormj
    I put together an ESX box for better management, but its performance is a WTF item; I'm a noob at dealing with ESX, so I'm looking for a laundry-list of reading material to help me straighten this out so I can go back to .NET programming. Current storage system: We're running Raid5+Hotspare (8x500 GB spindles) on a PERC6i on a Dell 2910. Due to ESX limitatios, the PERC is showing the storage as 1x2TB + 1x800GB "partitions." I'm not sure of the setup's configuration (stride / stripe / ???) at all. Our Applications We have a SBS server as well as a minor (2x50 GB, but growing at 10GB/month) database server... Our application that lives on the database VM is CPU and I/O insense; it's a database churning excercise mixed in with a lot of computation on the data (fixing that performance is what I'm supposed to be working on)... Perfomance Issue When I do a backup, restore, or worse (copy a backup from 1 vm to another to move it to the QA VM), the entire system slows to a crawl (even "unrelated" VMs). I originally thought a DASD situation would be quite good since you had PCI-x bandwidth, but the systemwide slowdown is killing productivity. Questions What should I do to make an intelligent decision about NAS vs RAID vs SAN vs DASD? Are there sweet spots/ugly spots in the storage setup? Can you use a SSD PCI-X card in ESX for the tempdb? Good/Bad idea? Is there any way to "share" some image in a copy-on-write fashion? Most of the "Backup-Copy-Restore" is to "put a clean image on the dev boxes"; if I could have them "share" the master image, the "big copy" (2x50 GB) would only need to be done once per week instead of once per dev per week...[runtime performance isn't a concern with the dev boxes, but the backup/copy/restore kills production, SBS, and everything else on the box]

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  • 550 Requested action not taken: mailbox unavailable

    - by Porch
    I setup a small box with Server 2003 64bit to be used as a webserver and email server for a small school. Real simple stuff for a few users. A simple website and a handful of emails. rDNS and spf records setup and pass every test I found including test at dnsstuff.com. Email sending to almost every email address (google, hotmail, aol, whatever) works. However, with one domain, I get an bounce back with the error. 550 Requested action not taken: mailbox unavailable It's another school running Exchange judging from some packet sniffing with WireShark. Every email on this domain I have tried sending to gives this error. The email address is valid as I can send to it from my personal, and gmail account without a problem. Does anyone know of some anti-spam software that gives an 550 error like the above? What else could this be? Thanks for any suggestions. Packet capture of the two servers communicating look like this. 220 <server snip> Microsoft ESMTP MAIL Service, Version: 6.0.3790.3959 ready at Sat, 2 Oct 2010 12:48:17 -0700 EHLO <email snip> 250-<server snip> Hello [<ip snip>] 250-TURN 250-SIZE 250-ETRN 250-XXXXXXXXXX 250-DSN 250-ENHANCEDSTATUSCODES 250-8bitmime 250-BINARYMIME 250-XXXXXXXX 250-VRFY 250-X-EXPS GSSAPI NTLM LOGIN 250-X-EXPS=LOGIN 250-AUTH GSSAPI NTLM LOGIN 250-AUTH=LOGIN 250-X-LINK2STATE 250-XXXXXXX 250 OK MAIL FROM: <email snip> 250 2.1.0 <email snip>....Sender OK RCPT TO:<email snip> 250 2.1.5 <email snip> DATA 354 Start mail input; end with <CRLF>.<CRLF> <email body here> . 550 Requested action not taken: mailbox unavailable QUIT 221 Goodbye

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  • Can I use CNAME with ip address? Why If works (sometimes)?

    - by Maciek Sawicki
    I believe that the easiest answer for the first question is "No, You have "A" for this", but I accidentally setup some subdomain using CNAME pointing to ip address and it worked on few computers in my office. I wonder how it was possible? Now, when I'm checking it from home I have following error: beast:~ viroos$ host somesubdomain.somedomain.com Host somesubdomain.somedomain.com not found: 3(NXDOMAIN) I'm 100% it used to work at my office (currently it looks like it doesn't, but I'm checking it on different machine). Therefore I'm not 100% if it worked due to some special network setup or because I tested it just after adding DNS entry. I know this story sounds, a little crazy/incredibly, but can someone help me solve this puzzle. //edit: I'm adding dig output ; <<>> DiG 9.6-ESV-R4-P3 <<>> somesubdomain.somedomain.com ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 60224 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 0 ;; QUESTION SECTION: ;somesubdomain.somedomain.com. IN A ;; ANSWER SECTION: somesubdomain.somedomain.com. 67 IN CNAME xxx.xxx.xxx.xx1. ;; AUTHORITY SECTION: . 1800 IN SOA a.root-servers.net. nstld.verisign-grs.com. 2012040901 1800 900 604800 86400 ;; Query time: 72 msec ;; SERVER: 8.8.8.8#53(8.8.8.8) ;; WHEN: Tue Apr 10 00:11:01 2012 ;; MSG SIZE rcvd: 136

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  • (Zywall USG 300) NAT bypassed when accessing in-house-server From LAN Via domain name

    - by mschr
    My situations is like this; i host a number of websites from within our joint network solution. On the network is basically 3 categories: the known public, registered via mac, given static dhcp lease the anonymous lan connections, given lease from specific dhcp range switches, unix hosts firewall Now, consider following hosts which are of interest 111.111.111.111 (Zywall USG 300 WAN) 192.168.1.1 (ZyWall USG 300 LAN) load balances and bw monitors plus handles NAT 192.168.1.2 (Linux www) serves mydomain1.tld and mydomain2.tld 192.168.123.123 (Random LAN client) accesses mydomain1.tld from LAN 23.234.12.253 (Random External client) accesses mydomain1.tld via WAN DNS A records are setup so that both mydomain1.tld and mydomain2.tld points to 111.111.111.111 - and the Linux www serves the http parts with VirtualHost configurations, setting up the document roots pr ServerName, this is not so interesting though.. NAT rule translates 111.111.111.111:80 to 192.168.1.2:80 (1:1 NAT) Our problem follows; When accessing http://mydomain1.tld from outside (23.234.12.253 example host) the joint network - everything is fine, zywall receives requests via port 80 and maps it to the linux host' httpd. However - once trying to go through the NAT from LAN side (in-house, 192.168.123.123 example host) then one gets filtered in the Zywall port 80 firewall. I know this only because port 443 is open for administration interface and https://mydomain1.tld prompts for zywall login. So my conclusion is, that the LAN that accesses 111.111.111.111 in fact are routed to 192.168.1.1 whilst bypassing the NAT table. I need to know how to setup NAT / Policy Route, so that LAN WAN LAN will function with proper network translations instead of doing the 'quick nameserver lookup' or whatever this might be.

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  • Forwarding HTTP Request with Direct Server Return

    - by Daniel Crabtree
    I have servers spread across several data centers, each storing different files. I want users to be able to access the files on all servers through a single domain and have the individual servers return the files directly to the users. The following shows a simple example: 1) The user's browser requests http://www.example.com/files/file1.zip 2) Request goes to server A, based on the DNS A record for example.com. 3) Server A analyzes the request and works out that /files/file1.zip is stored on server B. 4) Server A forwards the request to server B. 5) Server B returns file1.zip directly to the user without going through server A. Note: steps 4 and 5 must be transparent to the user and cannot involve sending a redirect to the user as that would violate the requirement of a single domain. From my research, what I want to achieve is called "Direct Server Return" and it is a common setup for load balancing. It is also sometimes called a half reverse proxy. For step 4, it sounds like I need to do MAC Address Translation and then pass the request back onto the network and for servers outside the network of server A tunneling will be required. For step 5, I simply need to configure server B, as per the real servers in a load balancing setup. Namely, server B should have server A's IP address on the loopback interface and it should not answer any ARP requests for that IP address. My problem is how to actually achieve step 4? I have found plenty of hardware and software that can do this for simple load balancing at layer 4, but these solutions fall short and cannot handle the kind of custom routing I require. It seems like I will need to roll my own solution. Ideally, I would like to do the routing / forwarding at the web server level, i.e. in PHP or C# / ASP.net. However, I am open to doing it at a lower level such as Apache or IIS, or at an even lower level, i.e. a custom proxy service in front of everything. Thanks.

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  • mysql command line not working

    - by Sandeepan Nath
    I have mysql running in my fedora system. I have xampp setup on the system and php projects present in the webspace are working fine. PhpMyAdmin is working fine. echoing phpinfo() in a PHP script also shows mysql enabled. But running mysql connect command mysql -u[username] -p[password] Gives this - bash: mysql: command not found How do I fix that? Any pointers? I guess I need to do some pointing (define some path in some file) so that my system knows that mysql is installed. What exactly do I have to do? Additional Details This system was someone else's and he is not available here. May be PHP/Mysql was setup already in the system. I just freshly extracted xampp for linux into /opt/lampp/ and have put all the above mentioned things (PHP projects and PhpMyAdmin) there. After doing that I had a socket problem (PhpMyAdmin was not working and showing this)- #2002 - The server is not responding (or the local MySQL server's socket is not correctly configured) I restarted lampp using ./lampp restart but problem remained. Then after turning on system today, I started lampp and everything worked just fine. No project issues anymore only command line Mysql not working

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  • Reliable applicance for routing IT emergency calls (SIP and ISDN)

    - by chiborg
    We have a fairly big IT installation and our IT staff needs to be reachable 24/7. At the moment we have the following setup for "emergency" calls to our IT staff on our main Asterisk box: An incoming emergency number (connected via SIP trunk and a BRI card in case the SIP trunk goes down). When the number is called during the office hours, all the SIP phones of the IT staff are called simultaneously. When the number is called out of office hours interface, a list of mobile phone numbers is called, one after another until someone picks up. The list can be changed by the IT staff via command line script. The setup works well, but the Asterisk is heavily used in a call center, has experienced some outages and misconfigurations, each of them bringing down the IT emergency number. So we'd like to put the IT emergency call functionality on a separate device. This does not need to be a big server, it even does not need to be Asterisk, it only has one purpose and should do it reliably. It should be very low-maintenance. Any suggestions for hard- and software?

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  • Install a KVM guest with LVM partitioning on an LVM partitioned host using virt-install fails, volume group already exists

    - by Rilik84
    our setup consists of a ubuntu 10.04 kvm host server with LVM, on top of which we install the ubuntu 10.04 virtual machines via virt-install and preseed. Each VM has a dedicated logical volume which we pass to virt-install via the "--disk path=/dev/sysvg/vm-name" parameter. The virtual machines themselves are using LVM as well. Virt-install seems to have a few issues with this setup. Say we want to install two virtual machines in parallel. The first vm installs correctly while the second halts during the partitioning, complaining with this error: "volume group name already in use". I tried removing the logical volumes, recreated them, rebooted the kvm host to clear any leftovers but the issue perists. The preseed is telling the vms to create a volume group named "sysvg", which is the same name used by the volume group of the kvm host. Considering this I did another test: I got rid of the preseed part taking care of the partitioning/lvm creation and started the creation of two vms in parallel. If, when prompted, I instruct the vms' installer to do a guided partitioning of the disk with LVM, it will still fail giving this different error on both the vms: Physical Volume /dev/sda5 is already in volume group sysvg. As I wrote, sysvg is the volume group used by the KVM host. So I thought the name clashing was the issue. By removing the preseed part I skipped the volume group naming. I can't understand how the virtual machines would be aware of the presence of that volume group since they're supposed to be isolated from it, especially after I removed and recreated the logical volumes dedicated to them. That detail should not be exposed at all to them! Thanks for the help. I'm clueless.

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  • Translating IPTables rule to UFW

    - by Dario Fumagalli
    we are using an Ubuntu 12.04 x64 LTS VPS. Firewall being used is UFW. I have setup a Varnish + LEMP setup. along with other things, including an Openswan IPSEC VPN from our office to the VPS data center. A second in house Ubuntu box is to act as MySQL slave and fetch data from the VPS through the VPN. Master's ppp0 is seen as 10.1.2.1 from the slave, they ping etc. I have done the various required tasks but I can't get the client (slave) MySQL (nor telnet 10.1.2.1 3306) to access the master through the VPN unless I issue this fairly obvious IPTables command: iptables -A INPUT -s 10.1.2.0/24 -p tcp --dport 3306 -j ACCEPT I willingly forced the accepted input to come from the last octet. With this rule everything works just fine! However I want to translate this command to UFW syntax so to keep everything in one place. Now I admit being inexperienced with UFW, I prepared rules like: ufw allow proto tcp from 10.1.2.0/24 port mysql and 2-3 variations involving specifying 3306 instead of mysql, specifying a target IP (MySQL's my.cnf at the moment is configured as 0.0.0.0) and similar but I just don't seem to be able to replicate the simple iptables rule in a functional way. Anyone could kindly give me a suggestion that is not to dump UFW? Thanks in advance.

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  • Multiple LDAP servers with mod_authn_alias: failover not working when the first LDAP is down?

    - by quanta
    I've been trying to setup redundant LDAP servers with Apache 2.2.3. /etc/httpd/conf.d/authn_alias.conf <AuthnProviderAlias ldap master> AuthLDAPURL ldap://192.168.5.148:389/dc=domain,dc=vn?cn AuthLDAPBindDN cn=anonymous,ou=it,dc=domain,dc=vn AuthLDAPBindPassword pa$$w0rd </AuthnProviderAlias> <AuthnProviderAlias ldap slave> AuthLDAPURL ldap://192.168.5.199:389/dc=domain,dc=vn?cn AuthLDAPBindDN cn=anonymous,ou=it,dc=domain,dc=vn AuthLDAPBindPassword pa$$w0rd </AuthnProviderAlias> /etc/httpd/conf.d/authz_ldap.conf # # mod_authz_ldap can be used to implement access control and # authenticate users against an LDAP database. # LoadModule authz_ldap_module modules/mod_authz_ldap.so <IfModule mod_authz_ldap.c> <Location /> AuthBasicProvider master slave AuthzLDAPAuthoritative Off AuthType Basic AuthName "Authorization required" AuthzLDAPMemberKey member AuthUserFile /home/setup/svn/auth-conf AuthzLDAPSetGroupAuth user require valid-user AuthzLDAPLogLevel error </Location> </IfModule> If I understand correctly, mod_authz_ldap will try to search users in the second LDAP if the first server is down or OpenLDAP on it is not running. But in practice, it does not happen. Tested by stopping LDAP on the master, I get the "500 Internal Server Error" when accessing to the Subversion repository. The error_log shows: [11061] auth_ldap authenticate: user quanta authentication failed; URI / [LDAP: ldap_simple_bind_s() failed][Can't contact LDAP server] Did I misunderstand? AuthBasicProvider ldap1 ldap2 only means that if mod_authz_ldap can't find the user in ldap1, it will continue with ldap2. It doesn't include the failover feature (ldap1 must be running and working fine)?

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  • Small Business HP Virtualisation and iSCSI SAN Options

    - by Robin Day
    We are a small business that hosts our core product on a number of HP servers. Our core production setup is 1x HP DL380, high powered for a SQL Server Database 1x HP DL360, mid powered for our core application server 6x HP DL320, low powered for our front ends We run our training / testing / support systems on a similar setup, the servers are just older and less powerful. Unfortunately this is now causing us issues as the system has grown beyond the capabilities of these older servers. Upgrading these servers would be expensive and we believe that virtualisation is probably the way to go for the future. Locally we run a number of test / dev environments on ESXi using Direct Storoage on a couple of high powered DL360's and these are performing fairly well. We're thinking that instead of replacing all of our test servers that we can implement an iSCSI SAN and one or two high powered hosts. Hopefully looking that when it comes to replace our live servers as well that we can just expand the virual environment to cope. So my question is... Can anyone offer any advice on some suitable options? We have generally always been extremely happy with HP servers, all of our kit is currently HP, therefore our preference would be to stick with HP, however, I'm always happy to hear about other options. I'm hoping that initially a budget of around 15-25k (GBP) would be suitable, this could potentially be increased if I had confidence that the system would pave the way for a cost effective upgrade of our live systems in the future as well. I am new to SAN's and my only real experience is playing with OpenFiler on some old desktops. I think iSCSI should be suitable, but I've not done any research into how SQL server may perform. I've had a browser through HP's sites and see plenty of information about EVA, MSA, LeftHand, etc. However, from looking at all that, I don't see which options would be best and more importantly I don't know exactly what I would need to buy. Any help, links, opinions would be much appreciated. Thanks

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  • hdfs configuration

    - by Ananymous
    I am a newbie. Trying to setup a hdfs system to serve my data (I don't plan to use mapreduce) at my lab. So far I have read, cluster setup in but I am still confused. Several questions: Do I need to have a secondary namenode? There are 2 files, masters and slaves. Do I really need these 2 files eventhough I just want hdfs? If I need them, what should go in there? I assume my namenode in masters and datanodes as slaves? Do I need slaves nodes What configuration files are needed for namenode, secondary namenode, datanode and client? (I assume core-site.xml is needed for all 4)? In addition, can someone suggest a good configuration model? sample configuration for namenode, secondary namenode, datanode, and the client would be very helpful. I am getting confused because it seems most of the documentation assumes I want to use map-reduce which isn't the case.

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