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• Mac Mini server (10.6) behind router with FQDN hostname

  - by thechriskelley

  I have a Mac Mini running Mac OS 10.6.6 Server that will be part of a local network, and a static IP from my ISP. I'd like to set up DNS for the Mini with a FQDN as the hostname (example.com) properly. The Mini is behind a router (Apple Airport Extreme) and is given a private, static IP address. I can't assign it the public static IP directly because it's behind a router with DHCP/NAT for other machines on the local net. My end goal here is for services to resolve to the server properly from outside and inside the local network to users via example.com (and subdomains like mail.example.com, www.example.com), which will point to the public static IP assigned to the router. Will DNS work/resolve properly (for mail services and other subdomains) if it has a private ip address, but the necessary services are forwarded properly through NAT? I'm open to any (hopefully better) suggestions, as my current setup doesn't seem like it's the best way. Currently, more hardware or another public static IP is not possible. With the current setup, it seems as though one static IP is not necessary anyway. Thanks in advance for any insight.

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• can't access SATA card config screen on boot, nor access the disks

  - by Ronald

  We've just upgraded our file server using an ASUS P6T WS Pro board, running FreeBSD-RELEASE 8.2 and using zfs to manage 12 WD20EARS disks. Since our 3ware card has been giving us trouble we started using the six on-board SATA connectors and got a SuperMicro USAS2-L8i to provide eight more ports. Mechanically, the card is an awkward fit but electrically it all seems ok. Upon boot, the LSI controller shows up and states that pressing ctrl-c will bring up the LSI Config Utility. When doing that, the message changes to state that the utility will be started after initialization, however that never happens. There does seem to be an error message that's only displayed too briefly to read and seems to be about PCI and "not enough space". (That message is pushed off by a hardware summary and I've found no way to scroll back at this point.) The disks do not show up in any recognizable ways after booting, either. I found a hint in another discussion to check the address mapping on either the card or the motherboard BIOS, but have found no way to do that. So what I tried on a hunch is to disable everything that's on-board, including network adapters, Firewire controller and SATA. In fact, after doing that, I can successfully launch the LSI Config Utility. As far as I can tell, all looks well in there, and when booting in that configuration it also displays a list of the disks connected to it, which looks just fine as well. Only problem now is that I can't boot that way, because I need the on-board SATA controller and network adapters. As soon as I re-enable any of them I'm back to square one. That discussion I mentioned about mapping addresses said to try D000, then D7FF, then DFFF, in order. The LSI Config Utility shows the card address as D000 but offers no way of changing it. Any tips or insights would be appreciated.

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• SQL Server 2008 Remote Access

  - by Timothy Strimple

  I'm having problems connecting to my SQL Server 2008 database from my computer. I have enabled remote connections as described in this answer (http://serverfault.com/questions/7798/how-to-enable-remote-connections-for-sql-server-2008). And I have added the ports listed on the microsoft support page to our Cisco Asa firewall and I'm still unable to connect. The error I'm getting from the SQL Management Studio is: 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: TCP Provider, error: 0 - A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.) (Microsoft SQL Server, Error: 10060) Once again, I have double and triple checked that remote connections are enabled under the database properties and that TCP is enabled on the configuration page. I've added tcp ports 135, 1433, 1434, 2382, 2383, and 4022 as well as udp 1434 to the firewall. I've also checked to make sure that 1433 is the static port that is set in the tcp section of the database server configuration. The ports should be configured correctly in the firewall since http/https and rdp are all working and the sql server ports are setup the same way. What am I missing here? Any help you could offer would be greatly appreciated. Edit: I can connect to the server via TCP on the internal network. The servers are colocated in a datacenter and I can connect from my production box to my development box and vice versa. To me that indicates a firewall issue, but I've no idea what else to open. I've even tried allowing all tcp ports to that server without success.

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• SMTP Unreachable from Specific Networks

  - by Jason George

  I host my business site through a VPS account. The instance runs Ubuntu and I'm using POSTFIX+Dovecot as my mail server. For the most part, the mail server works fine. I have noticed, however, that I can not send mail from specific local networks. I noticed this at a client's office serval months ago. I can receive email, but any time I tried to send mail when connected to their network the connection would time out. Since I could send my mail after leaving, I chalked it up to improper network configuration and didn't worry about it. Unfortunately I've recently moved, switched service providers, and am forced to use the service providers router due to the special set-up they put in place to give me DSL in the sticks--well beyond the typical range for a DSL run. Now I'm unable to send email from home, which is a problem. I have tried sending email through my phone (using cellular service rather than my DSL) just to confirm the server is currently working. I'm not even sure where start debugging. Any ideas on how I might track down the issue would be greatly appreciated.

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• Is there a reason to use internal DNS over 8.8.8.8 ?

  - by skylarking

  I've inherited a LAN where there is really no name resolution being done for local resources... i.e. all users enter IP addresses manually to access printers and network shares. There are no LDAP servers or domains either....workstations simply connect to the network without authentication. DHCP is handled via a core switch... And DNS settings are also handed out by this same core switch. Currently, the DNS assignments are as such, and in this order: 10.1.1.50 / old Pentium III Windows 2003 box running DNS service- 128 MB RAM 169.200.x.x / ISP 4.2.2.2. / the well known public one There a couple thousand clients on the LAN....and most of the activity is web browsing ( this is an educational setting ). First of all, the server seems woefully underpowered for this task...yet there is virtually no slowness when web surfing by clients.... How much horsepower should a heavily used DNS server have ? I have also heard using 4.2.2.2 is a bad idea .... since it has been so overused... Finally, wouldn't it make sense to have a robust external DNS server listed first? ( Google's 8.8.8.8 would seem to be a logical candidate )

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• Routing WIFI and LAN for specific traffic

  - by jakebird451

  I have two network devices aboard my macbook pro: WIFI (en1): Used for general traffic. Connects to an ip of 192.168.19.* via DHCP LAN (en0): Used for specific traffic. Connects to an ip of 192.168.2.10 as a static IP. Does not connect to a router, only a switch for direct routing connection. I have 4 IP addresses I need to access on the LAN: 192.168.2.1 192.168.2.21 192.168.2.20 192.168.2.30 The rest of the traffic needs to go to WIFI. I have tried setting up a routing table for the specific ip addresses, but I only managed to mess up my network. I do not venture out into the world of networking too often, but this was the latest command I have been trying: sudo route add -host 192.168.2.30 -interface en0 This command killed my ability to use ping. It told me that ping could not allocate memory (is that even possible)? It also killed my wifi access. Logging out and back in fixed the issue. I really do not mind to make this solution permanent, so I am fine with a temporary routing. EDIT: If I currently have been trying: sudo route flush sudo route add default 192.168.19.1 This gets everything to work for about a minute. But after such minute it "forgets" the routing to WiFi while retaining LAN's (en0) routing. If I unplug and replug my LAN (en0) cable, the process works for another minute.

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• Joining Samba to Active Directory with local user authentication

  - by Ansel Pol

  I apologise that this is somewhat incoherent, but hopefully someone will be able to make enough sense of this to understand what I'm trying to achieve and provide pointers. I have a machine with two network interfaces connected to two different networks (one of which it's providing several other services for, such as DNS), running two separate instances of Samba, one bound to each interface. One of the instances is just a workgroup-style setup using share-level authentication, which is all working fine. The problem is that I'm looking to join the other instance to an MS Active Directory domain (provided by MS Windows Small Business Server 2003) to enable a subset of the domain users to access the shares from Windows machines on the other network. The users who need access from the domain environment have accounts (whose names are all-lowercase versions of their domain usernames) on the machine running Samba, but I'm not sure about how to map the UIDs and everything I've read concerns authenticating accounts on that machine against either AD or another LDAP server. To clarify: I only want the credentials for AD users accessing the non-workgroup Samba instance to be authenticated against AD, not the accounts on the machine running Samba. I hope this is sufficiently clear. EDIT: In addition to being able to access the Samba shares from AD, I do also need to be able to access a share on the domain from the machine running Samba but would still like everything non-Samba-related to authenticate locally.

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• How to avoid Windows Genuine Advantage for an XP update?

  - by hlovdal

  I am about to apply updates to a windows xp installation I have not booted in a couple of years. When going to update.microsoft.com, it forced me first to accept an activex installation and now it wants me to install wga: Windows Update To use this latest version of Windows Update, you will need to upgrade some of its components. This version provides you with the following enhancements to our service: <... useless list of "advantages" ... Details Windows Genuine Advantage Validation Tool (KB892130) 1.1 MB , less than 1 minute The Windows Genuine Advantage Validation Tool enables you to verify that your copy of Microsoft Windows is genuine. The tool validates your Windows installation by checking Windows Product Identification and Product Activation status. Update for Windows XP (KB898461) 477 KB , less than 1 minute This update installs a permanent copy of Package Installer for Windows to enable software updates to have a significantly smaller download size. The Package Installer facilitates the install of software updates for Microsoft Windows operating systems and other Microsoft products. After you install this update, you may have to restart your system. Total: 1.5 MB , less than 1 minute I have heard nothing but bad things about wga, and I absolutely do not want it installed on my system (this answer seems to give some options). Searching for "windows xp" at microsoft's web pages brought up this page which says Windows XP Service Pack 3 Network Installation Package for IT Professionals and Developers Brief Description This installation package is intended for IT professionals and developers downloading and installing on multiple computers on a network. If you're updating just one computer, please visit Windows Update at http://update.microsoft.com . ... File Name: WindowsXP-KB936929-SP3-x86-ENU.exe I am currently downloading this file. Will installing this bring my installation up to date with security updates? What about later updates whenever a new problem is discovered, how can i update without using wga?

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• What is optimal hardware configuration for heavy load LAMP application

  - by Piotr K.

  I need to run Linux-Apache-PHP-MySQL application (Moodle e-learning platform) for a large number of concurrent users - I am aiming 5000 users. By concurrent I mean that 5000 people should be able to work with the application at the same time. "Work" means not only do database reads but writes as well. The application is not very typical, since it is doing a lot of inserts/updates on the database, so caching techniques are not helping to much. We are using InnoDB storage engine. In addition application is not written with performance in mind. For instance one Apache thread usually occupies about 30-50 MB of RAM. I would be greatful for information what hardware is needed to build scalable configuration that is able to handle this kind of load. We are using right now two HP DLG 380 with two 4 core processors which are able to handle much lower load (typically 300-500 concurrent users). Is it reasonable to invest in this kind of boxes and build cluster using them or is it better to go with some more high-end hardware? I am particularly curious how many and how powerful servers are needed (number of processors/cores, size of RAM) what network equipment should be used (what kind of switches, network cards) any other hardware, like particular disc storage solutions, etc, that are needed Another thing is how to put together everything, that is what is the most optimal architecture. Clustering with MySQL is rather hard (people are complaining about MySQL Cluster, even here on Stackoverflow).

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• Add Route for machine in same DC

  - by gary

  My routing table on my machine with IP of 46.84.121.243 currently looks like this - Network Destination Netmask Gateway Interface Metric 0.0.0.0 0.0.0.0 46.84.121.225 46.84.121.243 21 46.84.121.224 255.255.255.224 On-link 46.84.121.243 276 46.84.121.239 255.255.255.255 On-link 46.84.121.243 21 46.84.121.243 255.255.255.255 On-link 46.84.121.243 276 46.84.121.255 255.255.255.255 On-link 46.84.121.243 276 I'm trying to access 46.84.121.239, which is my other machine in the same DC but my guess is the first rule is blocking it as it is trying to go via the gateway and failing - Tracing route to [46.84.121.239] over a maximum of 30 hops: 1 OWNEROR-9O83HBL [46.84.121.243] reports: Destination host unreachable. Trace complete. I'm doing all this via RDP and already tried changing the metric on the persistent rule with devastating consequences! Here's the persistent rule (working) - Persistent Routes: Network Address Netmask Gateway Address Metric 0.0.0.0 0.0.0.0 46.84.121.225 1 Any help to be able to access the 46.84.121.243 would be very helpful thanks very much.

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• Domain authentication over OPEN wireless pre-logon (Windows 7 Pro) - No logon servers avail

  - by Shadow00Caster

  I have a plethora of laptops that are joined to an AD domain. I have an enterprise wireless system setup, the users of these laptops will be using an OPEN unsecured SSID which will ultimately have a captive portal that uses Radius-AD auth and firewall rules to allow access pre-captive portal auth to the proper ip's/ports of DC's etc for auth etc. I already have other laptops/users connecting to another SSID with 802.11x and SSO, all works perfectly pre-logon etc. My problem is with this open network, for some reason I cannot get the machines to auth to AD. The laptops connect to the wireless network, I confirm this on the controller and can ping the laptop at startup. I sharked the wires on the 2 DC's that these machines auth to, I can see a DNS SOA update from a laptop im testing with and can ping that test laptop from both DC's. When I try to logon, "There are currently no logon servers available to service the logon request." The shark shows no incoming connections to either DC even though the laptop is connected and pingable. Any help is greatly appreciated.

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• How to connect to local instance of SQL Server 2008 Express

  - by Billy Logan

  I just installed SQL Server 2008 Express on my windows 7 machine. I previously had 2005 on here and used it just fine with the old SQL Server Management Studio Express. I was able to connect with no problems to my PC-NAME\SQLEXPRESS instance. I uninstalled 2005 and SQL Server Management Studio Express. I then installed SQL Server 2008 Express on my machine and elected to have it install SQL Server Management Studio. Now, when I try to connect to PC-NAME\SQLEXPRESS (with Windows Authentication, like I always did), I get the following message: Cannot connect to PC-NAME\SQLEXPRESS. 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) For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&EvtSrc=MSSQLServer&EvtID=-1&LinkId=20476 When I went to the help link it mentions, the help page suggests the following: * Make sure that the SQL Server Browser service is started on the server. * Use the SQL Server Surface Area Configuration tool to enable SQL Server to accept remote connections. For more information about the SQL Server Surface Area Configuration Tool, see Surface Area Configuration for Services and Connections. I did try starting the SQL Server Browser, but don't see that the Surface Area Configuration is installed with this express version. I had seen another user with an almost exact same issue that was missing the database engine on install. If that were the case how could i test for that and where would i go to download that install. Thanks in advance, Billy

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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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• Unable to authenticate to Windows Server 2003 for file browsing as non-administrator user.

  - by Fopedush

  I've got a windows server 2003 box containing a raid 5 array I use for mass storage. I want to set up a special non-administrator account that can be used to browse files over the network, with only read access. Ideally I'll map my network drive as this user to avoid accidentally hosing my data, and mount as an administrator user on occasions where I actually need write access. I've created a non-administrator user on the Windows Server box (called "ReadOnly)", and granted the user read permissions on the folders I need. However, when I try to browse to the files, and authenticate as this user, I'm told "Permission denied". If I throw the readOnly user into the administrators group, however, I can authenticate and browse just fine. I am, of course, only attempting to browse to folder for which I have given this user read permissions. Obviously my ReadOnly user is missing some privilege here, but I can't figure out what it is. I've been digging around in group policy editor all day to no avail. What am I missing? Fake Edit: I'm doing my browsing from a Windows 7 box, but I don't think that is relevant.

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• Why do I get this message from chrome when navigating to https://www.amazon.com?

  - by Denis

  This is probably not the site you are looking for! You attempted to reach www.amazon.com, but instead you actually reached a server identifying itself as *.voxcdn.com. This may be caused by a misconfiguration on the server or by something more serious. An attacker on your network could be trying to get you to visit a fake (and potentially harmful) version of www.amazon.com. Intermittently, I get a blank page when going to http://www.amazon.com. So I stuck an 's' in the URL, making it https://www.amazon.com and got that message above (with the nice red screen) from Chrome indicating there might be some monkey business going on. After hammering on the URL a bunch of times and pulling it up in Chrome's developer tool to look at the network traffic on it, the url (without the s) started behaving. The url with the s just hangs, but the red screen no longer comes up. Some specs... I've got a macBook Pro, Snow Leopard, Time Warner cable. I've had enough strange stuff happening over the past couple months (google.com, youtube.com, amazon.com not coming up or loading strange error messages with random reference numbers) that I finally decided to switch to OpenDNS. Still having problems, though.

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• Ubuntu : apt-get command error

  - by Wibowo Margito

  I work with Ubuntu 10.04 everyday. Several days ago, when I release command sudo apt-get install .... it run very good, no error. I also able to open websites with my browser with no proxy. But, today, I got error. Every time I release the command, the connection redirected to an IP in my local network. I can see it in the terminal window. Several days ago I tried to connect to the internet throught the IP, by SSH tunneling. But I forget what I have done and there is no way home. This is the output in terminal : deo@deo-laptop:~$ sudo apt-get update [sudo] password for deo: Err http://cx.archive.ubuntu.com lucid Release.gpg [ Could not connect to 10.7.7.15:3128 (10.7.7.15). - connect (110: Connection timed out) Err http://cx.archive.ubuntu.com/ubuntu/ lucid/main Translation-en_US Unable to connect to 10.7.7.15:3128: 10.7.7.15 is an adress in my local network. Somebody please help me :)

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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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• Why does the file date always change to the current date?

  - by Marshall

  We are a programming shop, but this i snot a programming question. My boss has put an external HD on the network. It contains the 'home' folders for users on the network. He uses it to place VB projects that he wants me to work on. But no matter what date and time he places a project on the drive, the file dates(modified) always shows the current date, though nothing in the files have changed. It makes it very hard to confirm that he has given me the latest versions. (He is not a fan of version control and nothing I do will convince him different.) Any ideas why this happens and how to prevent it from happening? P.S. As I wrote this I decided to add the last accessed date to the file display, and those dates happen to show the dates I expect to see. Why is the modified date getting changed, but not the accessed date. Does the accessed date change only when the files are opened or read, changed or not? Note: I use Directory Opus 9, a replacement for windows file browser. Thanks, Marshall

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• Configuring OS X L2TP VPN to use Certificate for IPSEC layer instead of Pre Shared Key

  - by Matthew Savage

  I'm trying to setup a L2TP VPN on an OS X Snow Leopard Server setup, and have had success using a pre-shared key, however I would rather not rely on a simple string, and use a certificate instead. Setting this up on the server side is seemingly easy, you simply select a certificate you have generated from the list, and hit apply, however when I try to use the certificate on the client side it fails. I have exported the certificate into a P12 file, and then transferred to the client, and imported into the login keychain, however when I try to choose the certificate (from Network preferences, clicking Authentication Settings, then selecting Certificate and pressing Select) I am shown the following error: No machine certificates found Certificate authentication cannot be used because your keychain does not contain any suitable certificates. Use Keychain Access to import the certificate into your keychain. If you do not have the certificates required for authentication, contact your network administrator. Unfortunately even when I try to generate a certificate where I override the defaults, ensure the DNS name etc are set properly this doesn't change. When I select Certificate Authentication for the User Auth, and click Select the certificate for the server shows up there, but obviously this isn't where I need it to be available.

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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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• Wireless router blocking some sites while using ethernet is fine

  - by Micke

  I'm using Windows 7 and my router is a wireless Apple Airport Express that is approximately two years old. Suddenly I can't access some sites (for example www.sthlm.friskissvettis.se, or www.vegetarian-shoes.co.uk, some streamed tv-shows on svtplay.se, and a number of other random sites) when connecting to internet with my router. It worked good until recently and I'm fairly sure this problem emerged when my ISP upgraded from 10/10mbit to 100/10mbit speed. Most other sites like facebook and google works fine. When using my network cable to connect to internet everything works fine and I can access these sites. Firmware is current and I've tried reseting the router to factory defaults. Tried different browsers, and I can't ping the "blocked" sites either. Tracert www.sthlm.friskissvettis.se starts with 10.0.0.1 and continues through a number of long addresses until it says timeout. The last working address before timeout was sth-tcy-ipcore01-ge-0-2-0.neq.dgcsystems.net [83.241.252.13], if it matters. Tracert www.vegetarian-shoes.co.uk also eventually gives me a timeout. When the network cable is plugged in, I still get timeout on tracert www.sthlm.friskissvettis.se even though I can access the site in Chrome. Weird. www.vegetarian-shoes.co.uk doesn't give me a tracert timeout when the cable is plugged in, and I can access the site as usual. I've tried changing DNS servers to use opendns servers instead, but to no use. I've tried pinging these two sites with a lower MTU packet size (with this method: http://www.richard-slater.co.uk/archives/2009/10/23/change-your-mtu-under-vista-or-windows-7/), but still can't access them through ping... I don't know what to do anymore.... any suggestions???

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• Windows 7 - Windows XP - sharing - why isn't working?

  - by durumdara

  Hi! This is seems to be "hardware" and not "software" / "programming" question, but I need to use this share in my programs, so it is "close to programming". We had an XP based wireless network. The server is XP Professional, the clients are XP Home (Notebooks). This was working well with folder sharing (with user rights, not simple share). Then we replaced the one of the notebook with Win7/X64 notebook. First time this can reach the server, and the another client too. Later I went to another sites, and connect to another servers, another networks. And then, when I return to this network, I saw that I cannot connect to this server. Nothing of resources I see, and when try to dbl click on this computer, I got login window, where I can write anything, never I can login... The interesting part, that: Another XP home can see the server, can login as quest, or with other user. The server can see the XP home notebook. The Win7 can see the notebook's shared folders, and XP home can see the Win7 shared folders. The server can see the Win7 folders, BUT: the Win7 cannot see the server folders. Cannot see the resources too... The Win7 is in "work networking group", the group name is not mshome. I tried everything on the server, I tried to remove MS client, restore it with simple sharing, set guest password, etc., but I lost the possibilities to access this server from Win7. Does anyone have any idea what I need to see, what I need to set to access these resource - to use them in my programs? Thanks for every info, link: dd

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• Why is squid breaking kerberos/NTLM auth?

  - by DonEstefan

  I'm using squid 2.6.22 (Centos 5 Default) as a proxy. Squid seems to break the authentication process for web pages when they require NTLM or Kerberos Auth. I tested with sharepoint 2007 and tried all 3 authentication methods (NTLM, Kerberos, Basic). Accessing the site without squid works in all cases. When I access the same page with squid, then only basic-auth works. Using IE or Firefox desn't make any difference. Squid itself can be used by anybody (no auth_param configured). Its a bit tricky to find solutions online, since most of the topics whirl around auth_param for authenticating users to squid rather than authenticating users to a webpage behind squid. Could anyone help? Edit: Sorry, but my first test was totally screwed up. I tested against the wrong webservers (Memo to myself: always check assumptions before testing). Now I realized that the problem scenario is completely different. Kerberos work for IE Kerberos works for Firefox (after changing "network.negotiate-auth.trusted-uris" in about:config) NTLM works for IE NTLM does NOT work in Firefox (even after changing "network.automatic-ntlm-auth.trusted-uris" in about:config) By the way: The feature that provides NTLM-passthrough in squid is called "connection pinning" and the HTTP header "Proxy-support: Session-based-authentication""

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• How do I apply multiple subnets to a server with one NIC?

  - by Cosban

  I am trying to route multiple IPs through one physical NIC on my dedicated server for use with Proxmox KVM VMs. I have a dedicated server which is currently running Debian 4.4.5-8 with 3 available ip addresses for use, which will be displayed as 176.xxx.xxx.196 (main), 176.xxx.xxx.198 (on same subnet as main) and 5.xxx.xxx.166 (different subnet). I am currently trying to route the third IP address with the dedi for use with a vps that I have set up using proxmox v2.x but am having a really, really hard time doing so. Virtual interfaces binding the additional IP addresses work as expected, ruling out external routing problems. The provider has given the following information for the IP addresses on the main subnet: gateway: 176.xxx.xxx.193 netmask: 255.255.255.224 broadcast: 176.xxx.xxx.223 As well as the following information for the IP address on the second subnet: gateway: 5.xxx.xxx.161 netmask: 255.255.255.248 broadcast: 5.xxx.xxx.167 Everything I've tried with /etc/network/interfaces has either not worked, or has rendered the network completely useless. This is the current state of the file, which has the secondary IP address working on the same subnet as well as IPv6 working, but not the second subnet. # Nativen IPv6 Schnittstelle iface eth0 inet6 manual # Bridge IPv4 Schnittstelle (176.xxx.xxx.193/27) auto vmbr0 iface vmbr0 inet static address 176.xxx.xxx.196 netmask 255.255.255.224 gateway 176.xxx.xxx.193 broadcast 176.xxx.xxx.223 bridge_ports eth0 bridge_stp off bridge_fd 0 bridge_maxwait 0 post-up ip addr add 176.xxx.xxx.198/27 dev vmbr0 auto vmbr1 iface vmbr1 inet static address 5.xxx.xxx.166 netmask 255.255.255.248 gateway 5.xxx.xxx.161 broadcast 5.xxx.xxx.167 bridge_ports eth0 bridge_stp off bridge_fd 0 bridge_maxwait 0 post-up ip addr add 5.xxx.xxx.166/27 dev vmbr1 # Bridge IPv6 Schnittstelle (Reichweite: xxxx:xxxx:xxxx:xxxx:xxxx:xxxx::/64) iface vmbr0 inet6 static address xxxx:xxxx:xxxx:xxxx:xxxx:xxxx netmask 64 up ip -6 route add xxxx:xxxx:xxxx:xxxx:xxxx:xxxx dev vmbr0 down ip -6 route del xxxx:xxxx:xxxx:xxxx:xxxx:xxxx dev vmbr0 up ip -6 route add default via xxxx:xxxx:xxxx:xxxx:xxxx:xxxx dev vmbr0 down ip -6 route del default via xxxx:xxxx:xxxx:xxxx:xxxx:xxxx dev vmbr0

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• Fix: Connections to SQL Server 2005 on Windows Vista suddenly stop working

  - by NTulip

  On my Vista machine at work, applications and the SQL Server Management Console work fine connecting to SQL Server 2005. Sometimes they are ok for weeks at a time, sometime for hours and then they stop connecting. I've tried everything to get it to work including the installation of SPII and running the user provisioning tool without any luck. The only way to fix it was to restart. The Error: Connections are refused with the standard error message: Cannot connect to SERVER_NAME\INSTANCE_NAME ------------------------------ ADDITIONAL INFORMATION: 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) For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&EvtSrc=MSSQLServer&EvtID=-1&LinkId=20476 The Fix: Stop and restart the Sql Server Browser, Sql Server integration, SQL Server Active Directory Helper services. Works like a charm.

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