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• PHP extension causes symbol lookup error

  - by Christian

  Dear, I installed - or better tried to - the NMCryptGate Extension for PHP on my Debian 5.0.8 server. I did this by compiling the sources which came up with no error message. Calling phpinfo() I can see the extension as enabled. BUT, whenever I try calling a method from this extension I get an error logged to the apache error log: /usr/sbin/apache2: symbol lookup error: /usr/lib/php5/20060613+lfs/nmcryptgate.so: undefined symbol: nmlistalloc What is missing? I got two packages from the software company: the php module sources and some files which should - according to their path inside the tar - go to /usr/local/bin|doc|include|lib. I moved them there without any effect. Each of these two packages has its own config file almost looking the same: \# libnmcryptgate.la - a libtool library file \# Generated by ltmain.sh - GNU libtool 1.3.4 (1.385.2.196 1999/12/07 21:47:57) \# \# Please DO NOT delete this file \# It is necessary for linking the library \# The name that we can dlopen(3) dlname='' \# Names of this library library_names='libnmcryptgate.so.1 libnmcryptgate.so libnmcryptgate.so' \# The name of the static archive old_library='' \# Libraries that this one depends upon dependency_libs=' -L. -L/usr/ssl/lib -L/usr/local/ssl/lib -L/usr/local/lib -lssl -lcrypto' \# Version information for libnmcryptgate current=1 age=0 revision=29 \# Is this an already installed library installed=yes \# Directory that this library needs to be installed in libdir='/usr/local/lib' I tried several ways to get it right: moving files, symlinking, changing configurations - always followed by restarting apache - no success. I guess I just have to move the files to the correct location or change the libdir inside the config files but meanwhile I'm totally confused by the two packages: do I need both, which config rules what, do I have to use the libdir variable? And for what? ... Anybody out there hinting me to my source of failure? Thank you in advance, regards, Christian

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• Rails/Mongo across multiple different geo-regions

  - by wmarbut

  I have a system that by necessity requires physical presence in three or more different locations and I need advice on structuring in such a way that my database stays replicated in a timely manner without horrible latency. I've seen mysql access and replication be incredibly slow when the application server was trying to talk to a node that wasn't physically collocated. In this case I am using mongodb. The stack is linux/passenger/ruby/rails/mongodb. The database is write heavy and read light. The infrastructure is Amazon EC2 The application layer must be physically located in 3 or more different locations. I can't justify this requirement further than it is a requirement. The database, however needn't be located in more than one location if it can be written to quickly from other locations. From reading mongo's documentation, mongo replication seems like more of a candidate than sharding b/c my datastore is not huge. However I don't see anything that addresses the issue of speed for servers communicating across large distances with potentially high latency.

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• HTTP Upload Problems

  - by jfoster

  We are running a marketplace on ColdFusion8 and IIS with a widely geographically distributed user base and have been receiving complaints of issues with some HTTP uploads. Most of the complaints are coming from geographically distant locations from our main datacenter on the US east coast. I've attempted to upload the same 70MB file from a US West coast test server to both our main site and a backup running the same code on a different network route and I saw the same issues fairly consistently in both places, so I've ruled out the code, route, and internal network errors. I've also tested uploads using both the native cf upload tag and a third party tool called SaFileUp. I saw the same issues with both upload tools, so I also don't think this is necessarily a ColdFusion problem. I don't have any problems uploading the test file from the East coast to other east coast servers, so I'm beginning to think that the distance between our users and our equipment is a factor. I've also found that smaller files are more likely to succeed than large ones (< 10MB) I tried the test upload with both IE and FF and did notice a difference in the way that the browsers seemed to handle packet errors. IE seemed to have a tough time continuing an upload after dropped / bad packets, whereas FF seemed to have the ability to gracefully resume an upload after experiencing packet problems. Has anyone experienced similar issues? Is there anything we can do on our side to make uploads more forgiving to packet loss or resumable after an error? A different upload tool etc… Do we need upload servers in more than one location to shorten the network routes between clients and servers? Does anyone think that switching uploads to SSL will help (no layer7 packet sniffing may lead to a smoother upload). Thanks.

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• Start daemon after specific samba share is mounted

  - by getack

  I axed this question on AskUbuntu, but it's not getting any traction from there... So I'll try here as well: I have a homebrew headless NAS running 12.04. In it I have a bunch of disks that are presented as a samba share thanks to Greyhole. If I want to do anything to the files within this share, I must do it through greyhole so that everything is updated properly. Thus, the share must be mounted locally and then accessed from there if I want to work on the files from the local machine. I do this mounting automatically thanks to these instructions. I also have Deluge installed that takes care of all my torrenting needs. Deluge's default download location is in this share, so that all the downloads are immediately available to the rest of the network. Obviously for everything to work, the share must be mounted, otherwise Deluge is going to have a problem downloading to it. The problem is, it seems like Deluge is starting before the shares are mounted when the system boots. So downloading/seeding does not continue automatically after boot. I have to log in and force a manual rescan and start on each torrent otherwise all the torrents just hangs on the error. Is there a way I can make deluge start after the shares got properly mounted? I looked into Upstart's emits functionality but I cannot seem to get it to work properly. Any advice?

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• Canonical Redirect on Dynamic Mass Virtual Hosts on Apache

  - by Josh

  I have a Web app on Apache that allows users to point their domain to the server. Right now I'm using Apache's dynamic mass virtual hosts with an entry VirtualDocumentRoot /www/hosts/%0/docs So with www.companydomain.com it points to /www/hosts/www.companydomain.com/docs The problem is when the user goes to companydomain.com it will point to /www/hosts/companydomain.com/docs Is there an easy way to automatically have Apache check to see if a directory exists for the virtual host, and if not, look for the host name with "www." in front of it? Other subdomains are fine (i.e. abc.domain.com should point to a diff. directory than def.domain.com) but the whole "www" issue is a mystery to me. I am using dynamic mass virtual hosts so the server does not have to restart after each registration for the application. If there is a different way that is fine as long as apache isn't restarted each time. How can I accomplish this? Worst case scenario if there were a way to redirect to a "default" location on the server if not found I could always do a check via PHP or something but I feel like that is a bit hacked together and there has to be a more efficient way. Thanks in advance!

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• How to connect through a proxy using Remote Desktop?

  - by scottmarlowe

  So I've got a home server running Windows Server 2003. I use a dual network card setup and Routing and Remote Access to link the internal, private network to the external connection. The external connection hooks directly to my cable modem (so no routers or other devices sitting between). The problem I'm having is that I can't connect remotely from a location outside the house (so connecting to the server's external connection) to the server using either Remote Desktop or VNC. I have enabled both ports in Routing and Remote Access's firewall to allow access, and I have enabled Remote Desktop in Windows Server 2003. The odd thing is that I can access my home server's SVN repository and I can even ping the server's IP. I am using the IP to attempt to connect, though I use a dyndns.com provided name to connect to my SVN repository, so it shouldn't make a difference (I know the IP is getting resolved correctly). Any ideas on where to start diagnosing this one? I haven't seen anything in my server's event log. If any other info is needed, let me know. Thanks. UPDATE: One last piece of information: We use a proxy server at work, which I'm nearly 100% sure is the culprit. I have a workaround--if I connect to our VPN (even though I'm already inside the building) I am able to connect to my home server. This is with VNC. However, is there a way to connect through a proxy using Remote Desktop? ONE MORE UPDATE: Indeed, it was the http proxy I'm sitting behind at work that was causing the issue. An acceptable workaround is to use my VPN connection to bypass the proxy, and I'm in!

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• CouchDB crashes at startup when path to config file has space(s)

  - by Barry Wark

  I'm hoping to run CouchDB as a per-user Launch Agent on OS X. I'm using the coucdbx-core folder from the CouchDB Server.app as the base of my CouchDB deployment. I'd like each user to have their own couch instance (on a different port), necessitating separate config files for each instance. The logical place to put these files is in ~/Library/Application Support/ for each user. I can put the entire distribution in ~/Library/Application Support/my-app/coucdbx, and put the .ini at ~/Library/Application Support/my-app/local.ini. Starting couchdb as bin/couchdb -a ../local.ini (from ~/Library/Application Support/my-app/coucdbx) works great. But I'd like to save every user the ~50MB couchdbx and install the couchdbx-core in a shared location (e.g. within my app's .app bundle). When I do this, the path to the per-user config file contains a space, and I get the following error when starting CouchDB: $ bin/couchdb -n -a ~/Library/Application\ Support/us.physion.ovation/default.ini {"init terminating in do_boot",{{badmatch,{error,{bad_return,{{couch_app,start,[normal,["/Users/hs/prj/build-couchdb/build/etc/couchdb/default.ini","/Users/hs/prj/build-couchdb/build/etc/couchdb/local.ini"]]},{'EXIT',{{badmatch,{error,{error,enoent}}},[{couch_server_sup,start_server,1,[{file,"/Users/hs/prj/build-couchdb/dependencies/couchdb/src/couchdb/couch_server_sup.erl"},{line,56}]},{application_master,start_it_old,4,[{file,"application_master.erl"},{line,274}]}]}}}}}},[{couch,start,0,[{file,"/Users/hs/prj/build-couchdb/dependencies/couchdb/src/couchdb/couch.erl"},{line,18}]},{init,start_it,1,[]},{init,start_em,1,[]}]}} Is there any way to provide a config file at the command line, if that config file's path includes space(s)? Despite my best efforts in the mailing list archives, wiki and google, I haven't been able to find a solution or a definitive "it can't work". Any help greatly appreciated.

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• Get Squid to pass X-Requested-With header

  - by tftd

  I have configured a squid 3.1 proxy server. Everything works great except for the X-Requested-With header. I can't manage to figure out how to pass that header to the site I'm attempting to open via the proxy. This is my current configuration: request_header_access Allow allow all request_header_access Authorization allow all request_header_access WWW-Authenticate allow all request_header_access Proxy-Authorization allow all request_header_access Proxy-Authenticate allow all request_header_access Cache-Control allow all request_header_access Content-Encoding allow all request_header_access Content-Length allow all request_header_access Content-Type allow all request_header_access Date allow all request_header_access Expires allow all request_header_access Host allow all request_header_access If-Modified-Since allow all request_header_access Last-Modified allow all request_header_access Location allow all request_header_access Pragma allow all request_header_access Accept allow all request_header_access Accept-Charset allow all request_header_access Accept-Encoding allow all request_header_access Accept-Language allow all request_header_access Content-Language allow all request_header_access Cookie allow all request_header_access Mime-Version allow all request_header_access Retry-After allow all request_header_access Title allow all request_header_access Connection allow all request_header_access User-Agent allow all request_header_access All deny all #remove all other headers # delete "x-forwarder-for.." headers forwarded_for delete request_header_access Via deny all request_header_access X-Forwarded-For deny all I tried to add this line request_header_access X-Requested-With allow all to the configuration but apparently X-Requested-With is an unknown header name... Apparently I'm missing something?

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• When importing an Access table into Excel, a look-up column is showing all values as numbers

  - by user3651997

  I have a basic Access to Excel question that has me frustrated. I have two Access 2010 data tables. One is a list of managers. The primary key is a manager ID (which is an autonumber because managers can have the same name), and each row also has manager name, manager email, etc. The second data table is a list of departments. The primary key for each row is a unique department code, and the foreign key is a manager ID (autonumber). I used the Look-up Wizard to create this connection. However, Access does not show the manager ID in the foreign key location. It shows Manager Name like I requested when I used the Look-up Wizard. Now I am trying to import the second table (departments) into Excel 2010. I clicked import from Access, chose the Department table, and everything popped into Excel. BUT, the Manager Name column is showing Manager ID instead. So I have a list of numbers instead of names. How can I make Excel show what I see in Access? Thanks!

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• nginx inserting extra characters in Multi-status reply body

  - by user125011

  Here's the setup. I've got one server running apache/php hosting ownCloud. Among other things, I'm using to do CardDAV contact syncing. In order to make things work with my domain I have an nginx server running on the frontend as a reverse-proxy to the ownCloud server. My nginx config is as follows: server { listen 80; server_name cloud.mydomain.com; location / { proxy_set_header X-Forwarded-Host cloud.mydomain.com; proxy_set_header X-Forwarded-Proto http; proxy_set_header X-Forwarded-For $remote_addr; client_max_body_size 0; proxy_redirect off; proxy_pass http://server; } } The problem is that when my phone does a PROPFIND on the server, nginx adds extra characters to the content body that throw the phone off. Specifically, it prepends d611\r\n at the front of the body and appends 0\r\n\r\n to the end of the content. (I got this from wireshark.) It also re-chunks the result. How do I get nginx to send the original content as-is?

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• Problem configuring php-fpm with nginx

  - by Nisanio

  First of all: I'm not an expert in configuring things. This is very new for me, so, my apologies in advance. At work we have a Centos server. The guy who worked here before installed nginx. We need to made a php site, so, obviously, I need to set up php and make it work with nginx. Making short a very long tale, I had to replace the nginx binary with a new one (because the older was compile without fast-cgi), and I had to recompile and install php (because the new version has fpm). Then I struggle with the config files, making this nginx.conf (not all the file) user php; location ~ \.php$ { fastcgi_pass 127.0.0.1:9000; fastcgi_index index.php; fastcgi_param SCRIPT_FILENAME /scripts$fastcgi_script_name; include fastcgi_params; } and uncomment some parameters in php-fpm (to much to detail here, but the important is that group and user are "php") I never could start the php-fpm with the instructions of the book sudo /usr/sbin/php-fpm start But after look at the net, I found this sudo /usr/local/sbin/php-fpm --fpm-config=/usr/local/etc/php-fpm.conf This worked (I think) I restarted nginx. But... nothings happens with php... My calls to php files (via firefox) doesn't even appear in the log (/opt/nginx/logs/error.log) I'm really, really exhausted and lost... Could anyone help me, pleaaase.... :( Thanks in advance

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• Sharing disk volumes across OpenVZ guests to reduce Package Management Overhead

  - by andyortlieb

  Is it feasible to create a single "master" OpenVZ guest who would only be used for package management, and use something like mount --bind on several other OpenVZ guests sort of trick them into using the environment installed by the master guest? The point of this would be so that users can maintain their own containers, and yet stay in sync with the master development environment, so they'll always have the latest & greatest requirements without worrying too much about system administration. If they need to install their own packages, could put them in /opt, or /usr/local (or set a path to their home directory)? To rephrase, I would like several (developer's, for example) OpenVZ guests whose /bin, /usr (and so on...) actually refer to the same disk location as that of a master OpenVZ guest who can be started up to install and update common packages for the environment to be shared by all of this group of OpenVZ guests. For what it's worth, we're running Debian 6. Edit: I have tried mounting (bind, and readonly) /bin, /lib, /sbin, /usr in this fashion and it refuses to start the containers stating that files are already mounted or otherwise in use: Starting container ... vzquota : (error) Quota on syscall for id 1102: Device or resource busy vzquota : (error) Possible reasons: vzquota : (error) - Container's root is already mounted vzquota : (error) - there are opened files inside Container's private area vzquota : (error) - your current working directory is inside Container's vzquota : (error) private area vzquota : (error) Currently used file(s): /var/lib/vz/private/1102/sbin /var/lib/vz/private/1102/usr /var/lib/vz/private/1102/lib /var/lib/vz/private/1102/bin vzquota on failed [3] If I unmount these four volumes, and start the guest, and then mount them after the guest has started, the guest never sees them mounted.

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• I flashed my DS4700 with a 7 series firmware, now my DS4300 cannot read the disks I moved to that lo

  - by Daniel Hoeving

  In preparation for adding a number of 1Tb SATA disks to our DS4700 I flashed the controller firmware from a 6 series (which only supports up to 2Tb logical drives) to a 7 series (which supports larger than 2Tb logical drives). Attached to this DS4700 was a EXP710 expansion drawer that we had planned to migrate out to our co-location to allieviate the storage issues we were having there. Unfortunately these two projects were planned in isolation to one another so I was at the time unaware of the issue that this would cause. Prior to migrating the drawer I was reading the "IBM TotalStorage DS4000 EXP700 and EXP710 Storage Expansion EnclosuresInstallation, User’s, and Maintenance Guide" and discovered this: Controller firmware 6.xx or earlier has a different metadata (DACstore) data structure than controller firmware 7.xx.xx.xx. Metadata consists of the array and logical drive configuration data. These two metadata data structures are not interchangeable. When powered up and in Optimal state, the storage subsystem with controller firmware level 7.xx.xx.xx can convert the metadata from the drives configured in storage subsystems with controller firmware level 6.xx or earlier to controller firmware level 7.xx.xx.xx metadata data structure. However, the storage subsystem with controller firmware level 6.xx or earlier cannot read the metadata from the drives configured in storage subsystems with controller firmware level 7.xx.xx.xx or later. I had assumed that if I deleted the logical drives and array information on the EXP710 prior to migrating it to the DS4300 (6.60.22 firmware) this would satisfy the above, unfortunately I was wrong. So my question is a) Is it possible to restore the DAC information to its factory settings, b) What tool(s) would I use to accomplish this, or c) is this a lost cause? Daniel.

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• Symbolic directory link shared in domain

  - by Sabre

  We have a file server that is 2008R2 STD, it is a member server in a 2008 AD. I need to relocate some of the files and directories and would like to do it behind the scenes more or less without impacting the users. (Reason for this is that some of the files, due to recent software changes, HAVE to be located locally on one of the workstations, but they can be accessed by other applications remotely.) So symbolic links seem the panacea here, I moved a directory to another network share in the same domain (Windows 7 professional), created a symlink to it in the location it used to be in, named it the same thing, and to the local user it seems almost transparent. I.E. When logged into the desktop of the file server, I can go to the directory, open the link, it leaps to the other share as if it were local, exactly what would be expected. Then I tried it from another client computer (Windows 7 professional as well), went through the normal provisioning of R2R and L2R with fsutil... No joy. What I am getting is an access denied "Logon failure: Unknown username or bad password." using the same account that I log on locally to the file server with (Which happens to be the domain admin) So I cannot believe it is telling the truth, or... I assume it is not passing the credentials I am connecting to the first share all the way through the symlink. The end result is I want users on the domain to browser to share A, inside share A is a mixture of directories/files that reside there, and symlinks to directories/files on the second machine over the network in the same domain. Possible? Or am I misunderstanding how the symlink should work?

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• Is it the address bus size or the data bus size that determines "8-bit , 16-bit ,32-bit ,64-bit " systems?

  - by learner

  My simple understanding is as follows. Memory (RAM) is composed of bits, groups of 8 which form bytes, each of which can be addressed ,and hence byte addressable memory. Address Bus stores the location of a byte of memory. If an address bus is of size 32 bits, that means it can hold upto 232 numbers and it hence can refer upto 232 bytes of memory = 4GB of memory and any memory greater than that is useless. Data bus is used to send the value to be written to/read off the memory. If I have a data bus of size 32 bits, it means a maximum of 4 bytes can be written to/read off the memory at a time. I find no relation between this size and the maximum memory size possible. But I read here that: Even though most systems are byte-addressable, it makes sense for the processor to move as much data around as possible. This is done by the data bus, and the size of the data bus is where the names 8-bit system, 16-bit system, 32-bit system, 64-bit system, etc.. come from. When the data bus is 8 bits wide, it can transfer 8 bits in a single memory operation. When the data bus is 32 bits wide (as is most common at the time of writing), at most, 32 bits can be moved in a single memory operation. This says that the size of the data bus is what gives an OS the name, 8bit, 16bit and so on. What is wrong with my understanding?

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• Creating Windows 8.1 system image error

  - by Random

  I'm experiencing "not enough space" error when trying to create system image to a USB hard drive: Detailed error: ERROR - A Volume Shadow Copy Service operation error has occurred: (0x8004231f) Insufficient storage available to create either the shadow copy storage file or other shadow copy data. Blah, blah... There is not enough disk space to create the volume shadow copy on the storage location. Make sure that, for all volumes to be backup up, the minimum required disk space for shadow copy creation is available. This applies to both the backup storage destination and volumes included in the backup. Minimum requirement: For volumes less than 500 megabytes, the minimum is 50 megabytes of free space. For volumes more than 500 megabytes, the minimum is 320 megabytes of free space. Recommended: At least 1 gigabyte of free disk space on each volume if volume size is more than 1 gigabyte. ERROR - A Volume Shadow Copy Service operation error has occurred: (0x8004231f) Insufficient storage available to create either the shadow copy storage file or other shadow copy data. I'd tried both - PowerShell wbAdmin start backup -backupTarget:E: -include:C: -allCritical -quiet and via Control Panel - File History button Clearly both EFI and Windows Recovery Environment partitions don't meet requirements coming from System Image tool (pic below) On top of that all system partitions are now shown as 100% free in Disk Management, it's disturbing but far from the actual state. My question is - hot to create System Image in Windows 8.1?

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• HDD cannot be booted from

  - by K.Wong

  I have an ASUS A52F, no mods, with Win7 preinstalled. There is one hard drive, two partitions, one for the OS (C:) and one for data (D:) After laptop trauma, i.e. I dropped it, it still worked fine. However, when chkdisk was run on the C: drive chkdisk crashed, and Windows is unbootable. Windows Startup Manager utility was run, but error code 0xc00000e9 was given. Windows help db shows that this is a BIOS problem, however in BIOS setup the drive can be accessed, and folders can be shown. I also burned a Ubuntu 12.04 distro, and booted off it, but my internal HDD is missing and cannot be accessed. When installation program is run the HDD shows up as a location to install to yet the drive is shown as blank. tl;dr: HDD damaged, chkdisk crashed. Windows 7 is unbootable. Given error code, according to Microsoft db, is a BIOS problem, yet in BIOS the drive is accessible. different OS (Ubuntu 12.04), booted off a distro, yet HDD is inaccessible. Quick help appreciated.

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• Problem adding second domain controller to SBS 2008

  - by Quango

  Have an SBS 2008 server in one location, and want to add a backup domain controller at a different site. The two sites are linked by a VPN. New server is running Server 2008 R2, fully patched. At present it is a member server and the DNS is pointing at the SBS DNS. When I try running DCPROMO to connect the server, the wizard runs fine up to the point where the wizard is 'configuring Active Directory Domain Services' and 'examining forest': "The operation failed because: The wizard could not read operational attributes from the remote Active Directory Domain Controller SERVER.DOMAIN.LOCAL using LDAP. "The specified server cannot perform the requested operation." This error can occur if you have not been granted necessary permissions to read data in the directory. For more information, please see article 936241 in the Microsoft Knowledge Base (http://go.microsoft.com/fwlink/?LinkId=88420)." I was logged on as domain administrator. Interestingly the link is invalid and the KB article does not exist..! Settings: Configure this server as an additional Active Directory domain controller for the domain "[domain]". Site: [site] Additional Options: Read-only domain controller: "No" Global catalog: Yes DNS Server: Yes Update DNS Delegation: No Source domain controller: any writable domain controller Database folder: C:\Windows\NTDS Log file folder: C:\Windows\NTDS SYSVOL folder: C:\Windows\SYSVOL The DNS Server service will be configured on this computer. This computer will be configured to use this DNS server as its preferred DNS server.

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• Symantec Protection Suite Enterprise Edition

  - by rihatum

  We (our company) are planning to deploy Symantec Endpoint Protection and Symantec Desktop Recovery 2011 Desktop Edition to our 3000 - 4000 workstations (Windows7 32 and 64) with a few 100s with Windows XP 32/64 Bit. I have read the implementation guide for SEP and have read tech-notes for Desktop Recovery 2011. Our team have planned to deploy this as follows : 1 x dedicated SQL 2008R2 for Symantec Endpoint Protection (Instead of using the Embedded Database) 1 x Dedicated SQL 2008R2 for Symantec Desktop Recovery 2011 (Instead of using the Embedded Database) 1 x Dedicated W2K8 R2 Box for the SEPM (Symantec Endpoint Protection Manager - Mgmt. APP) 1 x Dedicated W2K8 R2 Box for the Symantec Desktop Recovery 2011 Management Application Agent Deployment : As per Symantec Documentation for both of the above, an agent can be pushed via the Mgmt. Application (provided no firewalls are blocking ports required etc. - we have Windows firewall disabled already). Above is the initial plan we have for 3000 - 4000 client workstation (Windows) Now my Questions :-) a) If we had these users distributed amongst two sites with AD DC / GC in each site, How would I restrict SEPM and Desktop Mgmt. solution to only check for users in their respective site ? b) At present all users are under one building but we are going to move some dept. to a new location (with dedicated connectivity), How would we control which SEPM / MGMT Server is responsible for which site ? c) What Hardware would you recommend as a Server spec for the SQL server 16GB RAM, Dual XEON? d) What Hardware would you recommend as a Server spec for the MGMT Servers 16GB RAM each with DUAL xeon and sas disks? e) Also, how do you or would you recommend to protect these 4 servers (2 x SQL and 2 x MGMT Servers)? f) How would you recommend to store backups for these desktops? We do have a SAN and a NAS in our environment and we do have one spare DAS (Dell MD3000). If you have anything to add / correct - that will be really helpful before diving into the actual implementation phase. Will be most grateful with your suggestions, recommendations and corrections with above - Many Thanks ! Rihatum

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• cannot connect to sql server express from sql server standard

  - by Jackson Sunuwar

  ... like my title says... I cannot connect to my instance on sql server express from sql server standard... I have tried disabling firing wall and checked sqlbrowser is started but for some reason I cannnot connect to my datbase... called server_name\sqlexpress.. I have a virtual machine and a full scale MS SQL Server 2008 R2 running on it... and I have several other vm running sqlexpress. they run fine and I can connect to them using sqlexpress... but when i try to access from sqlserver... I get this error. A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified) (Microsoft SQL Server, Error: -1) Digging deep into the error, I found this Error Number: -1 Severity: 20 State: 0 and finally this... Program Location: at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) at System.Data.SqlClient.TdsParser.Connect(ServerInfo serverInfo, SqlInternalConnectionTds connHandler, Boolean ignoreSniOpenTimeout, Int64 timerExpire, Boolean encrypt, Boolean trustServerCert, Boolean integratedSecurity, SqlConnection owningObject) at System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo serverInfo, String newPassword, Boolean ignoreSniOpenTimeout, Int64 timerExpire, SqlConnection owningObject) at System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(String host, String newPassword, Boolean redirectedUserInstance, SqlConnection owningObject, SqlConnectionString connectionOptions, Int64 timerStart) at System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance) at System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance) at System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection) at System.Data.ProviderBase.DbConnectionFactory.CreateNonPooledConnection(DbConnection owningConnection, DbConnectionPoolGroup poolGroup) at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) at System.Data.SqlClient.SqlConnection.Open() at Microsoft.SqlServer.Management.SqlStudio.Explorer.ObjectExplorerService.ValidateConnection(UIConnectionInfo ci, IServerType server) at Microsoft.SqlServer.Management.UI.ConnectionDlg.Connector.ConnectionThreadUser() Firewall is turned off on the VM that's running mssqlserver... I turned of firewall on one of the vm that's running the sqlexpress but I still get the error... can someone please help... thank you

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• Apache + Codeigniter + New Server + Unexpected Errors

  - by ngl5000

  Alright here is the situation: I use to have my codeigniter site at bluehost were I did not have root access, I have since moved that site to rackspace. I have not changed any of the PHP code yet there has been some unexpected behavior. Unexpected Behavior: http://mysite.com/robots.txt Both old and new resolve to the robots file http://mysite.com/robots.txt/ The old bluehost setup resolves to my codeigniter 404 error page. The rackspace config resolves to: Not Found The requested URL /robots.txt/ was not found on this server. **This instance leads me to believe that there could be a problem with my mod rewrites or lack there of. The first one produces the error correctly through php while it seems the second senario lets the server handle this error. The next instance of this problem is even more troubling: 'http://mysite.com/search/term/9 x 1-1%2F2 white/' New site results in: Bad Request Your browser sent a request that this server could not understand. Old site results in: The actual page being loaded and the search term being unencoded. I have to assume that this has something to do with the fact that when I went to the new server I went from root level htaccess file to httpd.conf file and virtual server default and default-ssl. Here they are: Default file: <VirtualHost *:80> ServerAdmin webmaster@localhost ServerName mysite.com DocumentRoot /var/www <Directory /> Options +FollowSymLinks AllowOverride None </Directory> <Directory /var/www> Options -Indexes +FollowSymLinks -MultiViews AllowOverride None Order allow,deny allow from all RewriteEngine On RewriteBase / # force no www. (also does the IP thing) RewriteCond %{HTTPS} !=on RewriteCond %{HTTP_HOST} !^mysite\.com [NC] RewriteRule ^(.*)$ http://mysite.com/$1 [R=301,L] RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule ^(.+)\.(\d+)\.(js|css|png|jpg|gif)$ $1.$3 [L] # index.php remove any index.php parts RewriteCond %{THE_REQUEST} /index\.(php|html) RewriteRule (.*)index\.(php|html)(.*)$ /$1$3 [r=301,L] # codeigniter direct RewriteCond $0 !^(index\.php|assets|robots\.txt|sitemap\.xml|favicon\.ico) RewriteRule ^.*$ index.php [L] </Directory> ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/ <Directory "/usr/lib/cgi-bin"> AllowOverride None Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch Order allow,deny Allow from all </Directory> ErrorLog ${APACHE_LOG_DIR}/error.log # Possible values include: debug, info, notice, warn, error, crit, # alert, emerg. LogLevel warn CustomLog ${APACHE_LOG_DIR}/access.log combined Alias /doc/ "/usr/share/doc/" <Directory "/usr/share/doc/"> Options Indexes MultiViews FollowSymLinks AllowOverride None Order deny,allow Deny from all Allow from 127.0.0.0/255.0.0.0 ::1/128 </Directory> </VirtualHost> Default-ssl File <IfModule mod_ssl.c> <VirtualHost _default_:443> ServerAdmin webmaster@localhost ServerName mysite.com DocumentRoot /var/www <Directory /> Options +FollowSymLinks AllowOverride None </Directory> <Directory /var/www> Options -Indexes +FollowSymLinks -MultiViews AllowOverride None Order allow,deny allow from all RewriteEngine On RewriteBase / RewriteCond %{SERVER_PORT} !^443 RewriteRule ^ https://mysite.com%{REQUEST_URI} [R=301,L] RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule ^(.+)\.(\d+)\.(js|css|png|jpg|gif)$ $1.$3 [L] # index.php remove any index.php parts RewriteCond %{THE_REQUEST} /index\.(php|html) RewriteRule (.*)index\.(php|html)(.*)$ /$1$3 [r=301,L] # codeigniter direct RewriteCond $0 !^(index\.php|assets|robots\.txt|sitemap\.xml|favicon\.ico) RewriteRule ^.*$ index.php [L] </Directory> ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/ <Directory "/usr/lib/cgi-bin"> AllowOverride None Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch Order allow,deny Allow from all </Directory> ErrorLog ${APACHE_LOG_DIR}/error.log # Possible values include: debug, info, notice, warn, error, crit, # alert, emerg. LogLevel warn CustomLog ${APACHE_LOG_DIR}/ssl_access.log combined Alias /doc/ "/usr/share/doc/" <Directory "/usr/share/doc/"> Options Indexes MultiViews FollowSymLinks AllowOverride None Order deny,allow Deny from all Allow from 127.0.0.0/255.0.0.0 ::1/128 </Directory> # SSL Engine Switch: # Enable/Disable SSL for this virtual host. SSLEngine on # Use our self-signed certificate by default SSLCertificateFile /etc/apache2/ssl/certs/www.mysite.com.crt SSLCertificateKeyFile /etc/apache2/ssl/private/www.mysite.com.key # A self-signed (snakeoil) certificate can be created by installing # the ssl-cert package. See # /usr/share/doc/apache2.2-common/README.Debian.gz for more info. # If both key and certificate are stored in the same file, only the # SSLCertificateFile directive is needed. # SSLCertificateFile /etc/ssl/certs/ssl-cert-snakeoil.pem # SSLCertificateKeyFile /etc/ssl/private/ssl-cert-snakeoil.key # Server Certificate Chain: # Point SSLCertificateChainFile at a file containing the # concatenation of PEM encoded CA certificates which form the # certificate chain for the server certificate. Alternatively # the referenced file can be the same as SSLCertificateFile # when the CA certificates are directly appended to the server # certificate for convinience. #SSLCertificateChainFile /etc/apache2/ssl.crt/server-ca.crt # Certificate Authority (CA): # Set the CA certificate verification path where to find CA # certificates for client authentication or alternatively one # huge file containing all of them (file must be PEM encoded) # Note: Inside SSLCACertificatePath you need hash symlinks # to point to the certificate files. Use the provided # Makefile to update the hash symlinks after changes. #SSLCACertificatePath /etc/ssl/certs/ #SSLCACertificateFile /etc/apache2/ssl.crt/ca-bundle.crt # Certificate Revocation Lists (CRL): # Set the CA revocation path where to find CA CRLs for client # authentication or alternatively one huge file containing all # of them (file must be PEM encoded) # Note: Inside SSLCARevocationPath you need hash symlinks # to point to the certificate files. Use the provided # Makefile to update the hash symlinks after changes. #SSLCARevocationPath /etc/apache2/ssl.crl/ #SSLCARevocationFile /etc/apache2/ssl.crl/ca-bundle.crl # Client Authentication (Type): # Client certificate verification type and depth. Types are # none, optional, require and optional_no_ca. Depth is a # number which specifies how deeply to verify the certificate # issuer chain before deciding the certificate is not valid. #SSLVerifyClient require #SSLVerifyDepth 10 # Access Control: # With SSLRequire you can do per-directory access control based # on arbitrary complex boolean expressions containing server # variable checks and other lookup directives. The syntax is a # mixture between C and Perl. See the mod_ssl documentation # for more details. #<Location /> #SSLRequire ( %{SSL_CIPHER} !~ m/^(EXP|NULL)/ \ # and %{SSL_CLIENT_S_DN_O} eq "Snake Oil, Ltd." \ # and %{SSL_CLIENT_S_DN_OU} in {"Staff", "CA", "Dev"} \ # and %{TIME_WDAY} >= 1 and %{TIME_WDAY} <= 5 \ # and %{TIME_HOUR} >= 8 and %{TIME_HOUR} <= 20 ) \ # or %{REMOTE_ADDR} =~ m/^192\.76\.162\.[0-9]+$/ #</Location> # SSL Engine Options: # Set various options for the SSL engine. # o FakeBasicAuth: # Translate the client X.509 into a Basic Authorisation. This means that # the standard Auth/DBMAuth methods can be used for access control. The # user name is the `one line' version of the client's X.509 certificate. # Note that no password is obtained from the user. Every entry in the user # file needs this password: `xxj31ZMTZzkVA'. # o ExportCertData: # This exports two additional environment variables: SSL_CLIENT_CERT and # SSL_SERVER_CERT. These contain the PEM-encoded certificates of the # server (always existing) and the client (only existing when client # authentication is used). This can be used to import the certificates # into CGI scripts. # o StdEnvVars: # This exports the standard SSL/TLS related `SSL_*' environment variables. # Per default this exportation is switched off for performance reasons, # because the extraction step is an expensive operation and is usually # useless for serving static content. So one usually enables the # exportation for CGI and SSI requests only. # o StrictRequire: # This denies access when "SSLRequireSSL" or "SSLRequire" applied even # under a "Satisfy any" situation, i.e. when it applies access is denied # and no other module can change it. # o OptRenegotiate: # This enables optimized SSL connection renegotiation handling when SSL # directives are used in per-directory context. #SSLOptions +FakeBasicAuth +ExportCertData +StrictRequire <FilesMatch "\.(cgi|shtml|phtml|php)$"> SSLOptions +StdEnvVars </FilesMatch> <Directory /usr/lib/cgi-bin> SSLOptions +StdEnvVars </Directory> # SSL Protocol Adjustments: # The safe and default but still SSL/TLS standard compliant shutdown # approach is that mod_ssl sends the close notify alert but doesn't wait for # the close notify alert from client. When you need a different shutdown # approach you can use one of the following variables: # o ssl-unclean-shutdown: # This forces an unclean shutdown when the connection is closed, i.e. no # SSL close notify alert is send or allowed to received. This violates # the SSL/TLS standard but is needed for some brain-dead browsers. Use # this when you receive I/O errors because of the standard approach where # mod_ssl sends the close notify alert. # o ssl-accurate-shutdown: # This forces an accurate shutdown when the connection is closed, i.e. a # SSL close notify alert is send and mod_ssl waits for the close notify # alert of the client. This is 100% SSL/TLS standard compliant, but in # practice often causes hanging connections with brain-dead browsers. Use # this only for browsers where you know that their SSL implementation # works correctly. # Notice: Most problems of broken clients are also related to the HTTP # keep-alive facility, so you usually additionally want to disable # keep-alive for those clients, too. Use variable "nokeepalive" for this. # Similarly, one has to force some clients to use HTTP/1.0 to workaround # their broken HTTP/1.1 implementation. Use variables "downgrade-1.0" and # "force-response-1.0" for this. BrowserMatch "MSIE [2-6]" \ nokeepalive ssl-unclean-shutdown \ downgrade-1.0 force-response-1.0 # MSIE 7 and newer should be able to use keepalive BrowserMatch "MSIE [17-9]" ssl-unclean-shutdown httpd.conf File Just a lot of stuff from html5 boiler plate, I will post it if need be Old htaccess file <IfModule mod_rewrite.c> # index.php remove any index.php parts RewriteCond %{THE_REQUEST} /index\.(php|html) RewriteRule (.*)index\.(php|html)(.*)$ /$1$3 [r=301,L] RewriteCond $1 !^(index\.php|assets|robots\.txt|sitemap\.xml|favicon\.ico) RewriteRule ^(.*)/$ /$1 [r=301,L] # codeigniter direct RewriteCond $1 !^(index\.php|assets|robots\.txt|sitemap\.xml|favicon\.ico) RewriteRule ^(.*)$ /index.php/$1 [L] </IfModule> Any Help would be hugely appreciated!!

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• Weird connectivity issue wtih USB Wifi stick.

  - by Carlos Nunez

  Hi, all! I'm not sure if this is the appropriate place to throw this question out there, but I'll give it a shot. I'm setting up two PCs, and I've been having massive troubles getting a USB wireless dongle working. I have two Sony VAIOs (Windows XP, SP2) that I found second-hand, and since they will be in a location too far to connect by Ethernet (no, can't do patch panels here :p), I need to connect them by wireless. Easiest and cheapest way to do that at the moment is by using two USB wireless sticks that I've had for a while, but never used. One of the computers is using a SMC-manufactured card, whereas the other is using a Belkin F5D7050. The box with the SMC card can see and authenticate with my router just fine, and has no problem obtaining a DHCP lease. The box with the Belkin, on the other hand, isn't so lucky. While it can see my router and associate with it, it will not obtain a DHCP-issued address. Worse, when I assign a static IP address to the NIC, it can ping the entire network and access the internet (meaning it can authenticate with the router), but no computer can ping to it UNLESS that computer pinged the computer that's pinging it first. Confused? Well, so am I. Has anyone had this issue before? Is this just a sign of a bad card? (For the moment, I have it connected by Ethernet, as I haven't moved it yet. However, this will be a problem when I set it up in its new home later.) Thanks! -Carlos Nunez

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• All browsers refusing to load a specific image on a webpage?

  - by Johnson

  Out of nowhere today, all 3 of my browsers (FF/Chrome/IE, OS = Win7 x64) are refusing to load the homepage of interfacelift.com correctly. It works fine on other PC's in the house (on the same network), so it is definitely related to this one PC. The browser won't load the main image on the page correctly (even though the source code looks good), however if I direct the browser to the exact location of that image, then it displays fine. So obviously I can get the HTML index (which locates the resource) and I can get to the resource. So why heck isn't it displaying properly on the index page? It's almost as if the HTML rendering engine has gone bad, on all 3 browsers at once. I've browsed to a bunch of other sites (including sites very heavy on JS, with HTML much more complex than the one in question here) and am seeing nothing funny. Only thing wonky I've done with my PC in the past several hours was replacing the system file Magnifier.exe with a copy of cmd.exe while playing around with some of the ideas mentioned in this guide. However, I've since then restored the files to their previous state, and I don't know how Magnifier would be related to this even if I hadn't restored it. Any ideas? I'm stumped! EDIT: Here is what the broken page looks like in Chrome. And here is the image loaded correctly by itself.

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• How does the LeftHand SAN perform in a Production environment?

  - by Keith Sirmons

  Howdy, I previously asked this ServerFault question: Does anyone have experience with lefthands VSA SAN The general consensus looks like it does not perform well enough for a production SQL server even at a light load. So the new question is, How does LeftHand's SAN perform on the HP or Dell dedicated Hardware boxes? We are looking at the Starter SAN with 2 HP nodes in a 2-way replication, 2 ESX servers hosting a total of 2 Active Directory server, 1 MS SQL server, 1 File Server, and 1 General Purpose Server for things like Virus Scan (All Microsoft Server 2005 or 2008). The reason I am looking at LeftHand is for the complete software package. I plan to have a DR site and like how the SAN can perform an Async Replication to the offsite location without having to go back to the Vendor for more licenses. I also like the redundancy built into the Network Raid architecture. I have looked at other SANS and found different faults with them. For example, Dell's EqualLogic: Found that although the individual box is very redundant in hardware, the Data once spanned across multiple boxes is not redundant, if a node goes down you have lost the only copy of the data sitting on that hardware (One thing is certain, all hardware fails... When? is the only question.). I have used an XioTech SAN as well.. Well worth the money BTW, but I think it is overkill for the size of the office I am targeting. The cost to get the hardware redundancy in the XioTech makes it a little out of reach for the budget I am working in. Thank you, Keith

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• Static file serving only works if root is a subfolder under public

  - by lulalala

  I am trying to serve static cache files using nginx. There are index.html files under the rails_root/public/cache directory. I tried the following configuration first, which doesn't work: root <%= current_path %>/public; # $uri always contains one slash(the first slash but not the last) try_files /cache$uri/index.html /cache$uri.html @rails; This give error: [error] 4056#0: *13503414 directory index of "(...)current/public/" is forbidden, request: "GET / HTTP/1.1" I then tried root <%= current_path %>/public/cache; # $uri always contains one slash(the first slash but not the last) try_files $uri/index.html $uri.html @rails; And to my surprise this works. Why is it that I can do the latter not the former( since they point to the same location) The permissions of the folders are: 775 public 755 cache 644 index.html The thing is that my favicon sitting under public/ is served correctly: # asset server server { listen 80; server_name assets.<%= server_name %>; expires max; add_header Cache-Control public; charset utf-8; root <%= current_path %>/public; }

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