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Freetds Error 20012

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to make sure that when your application requests a connection to your server, it actually works. In detail, we want to know:

FreeTDS can find and read freetds.conf

servername

Freetds Adaptive Server Connection Failed

exists in freetds.conf

a host property exists for servername

host can be resolved to a network address

the server is listening to

Freetds Tds Version

the port or named instance

the user can log in to the server

Each of the above can be confirmed independently with tsql. Once you're freetds configure sure you can connect and log in, you can run the unit tests to see if the software works as promised.

tsqlThe tsql utility is provided as part of FreeTDS expressly for troubleshooting. tsql is superficially similar to an isql, but uses libtds directly, bypassing the client libraries (e.g., DB-Library). It can also report where it looks freetds install for freetds.conf and other compile-time settings (with tsql -C).

Example 3-2. Show compile-time settings with tsql

$ tsql -C Password: Compile-time settings (established with the "configure" script) Version: freetds v0.1.0 freetds.conf directory: /usr/local/etc MS db-lib source compatibility: no Sybase binary compatibility: no Thread safety: yes iconv library: no TDS version: 7.0 iODBC: no unixodbc: no SSPI "trusted" logins: no Keberos: no
For details on the use of tsql, consult its man page.

servername LookupIf all goes well, the first time you fire up tsql it connects and you can issue your first query. More often, though, the result is less joyous. Listed below for your troubleshooting pleasure are a variety of servername lookup failures and their corresponding messages.

When servername cannot be converted to an address, up to two messages may result. Successful conversion (by any means) never produces an error message. Example 3-3. Failure to find servername in freetds.conf

$ tsql -S nobox -U sa Password:

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Freetds Unknown Host Machine Name

Close Search Login Join Today Products BackProducts Gigs Live Careers Vendor Services Groups Website Testing freetds unexpected eof from the server Store Headlines Experts Exchange > Questions > Freetds Connection Want to Advertise Here? Solved Freetds Connection Posted on 2015-08-27 MS SQL Server MS

Freetds Log

SQL Server 2008 Databases 1 Verified Solution 14 Comments 127 Views Last Modified: 2015-09-25 C:\freetds-0.95rc2\bin>tsql -C Compile-time settings (established with the "configure" script) Version: http://www.freetds.org/userguide/confirminstall.htm freetds v0.95rc2 freetds.conf directory: \freetds-0.95rc2\etc MS db-lib source compatibility: no Sybase binary compatibility: no Thread safety: yes iconv library: yes TDS version: 7.0 https://www.experts-exchange.com/questions/28709320/Freetds-Connection.html iODBC: no unixodbc: yes (unixODBC 2.3.2) SSPI "trusted" logins: yes Kerberos: yes (Heimdal 1.6.99) OpenSSL: yes (OpenSSL 1.0.2a) GnuTLS: no C:\freetds-0.95rc2\bin>tsql -H localhost -p 1433 -U sa -P master -D tempdb locale is "English_United States.1252" using default charset "UTF-8" Setting tempdb as default database in login packet . . . This just seems to hang. How do i get a prompt to allow me to run a query? 0 Question by:xoxomos Facebook Twitter LinkedIn Google LVL 39 Active 2 days ago Best Solution bylcohan so is this what you're using right? http://www.freetds.org/userguide/python.htm did you checked _mssql module? http://pymssql.org/en/latest/_mssql_examples.html Can you pl try just bel;ow Go to Solution 14 Comments LVL 39 Overall: Level 39 MS SQL Server 27 MS SQL Server 2008 26 Databases 11 Message Active 2 days ago Expert Comment by:lcohan2015-08-31 I believe you use the wrong -H switch for the servername and the command should be rather like tsql -S serverna

Next message: [freetds] Unable to connect: Adaptive Server is unavailable or does not exist Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] and my config is: [sqlserv] host = localhost port = 1433 tds version = 7.0 On Tue, May 7, 2013 http://lists.ibiblio.org/pipermail/freetds/2013q2/028377.html at 10:30 AM, Krish wrote: > Thanks James > > I think problem is port forwarding, ssh tunnel is not working from freeTDS. > > The SQL Server is not in localhost, but it is in machine called > http://askubuntu.com/questions/525530/sqlstatehy000-unknown-host-machine-name-severity-2 db_server. Access to db_server is restricted to mid_server. I created > tunnel with > > $ssh -L 1433:db_server:1433 user at mid_server > > The above port forwardign is working for Navicat. I can connect > localhost:1433 via Navicat and access all database freetds error in db_server. I > also can telnet localhost 1433. So main problem is freeTDS not working > port forwarding. Is there any way to get this work? > > > > > On Tue, May 7, 2013 at 6:26 AM, James K. Lowden wrote: >> On Mon, 06 May 2013 09:38:03 -0400 >> Randy Syring wrote: >> >>> Use TDSDUMPCONFIG: >>> >>> http://freetds.schemamania.org/userguide/logging.htm >>> >>> to make sure you are connecting the way you think you are. The freetds error 20012 error >>> is essentially saying it can't find the server. >> >> That's good advice. Just to clarify, though, the careful reader can >> distinguish between "can't find the server" and "server didn't >> answer". >> >> If you try "man errno", you may find the OS error messages and their >> associated numbers are lists. You saw, >> >>> OS error 61, "Connection refused" >> >> $ man errno | sed -ne '/61 /,/^$/p' >> >> 61 ECONNREFUSED Connection refused. No connection could be >> made because the target machine actively refused it. This usually >> results from trying to connect to a service that is inactive on >> the foreign host. >> >> whereas a name lookup failure looks a little different: >> >> $ tsql -H no-such-host -p 17 >> Error 20012 (severity 2): >> Server name not found in configuration files. >> ... >> Error 20013 (severity 2): >> Unknown host machine name. >> There was a problem connecting to the server >> >> (There should be an OS error for that, too, but the error-handling logic >> has no way to pass along the fact that the error status for >> gethostbyname(3) is in herror, not errno.) >> >> >From this we know you are reaching a machine ("locahost" was resolved, >> whew!) but that machine is not answering on the port. I would suggest >> a simple TDSDUMP first, because it will tell you on one line the >> address & port it's connect

communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Ask Ubuntu Questions Tags Users Badges Unanswered Ask Question _ Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top SQLSTATE[HY000] Unknown host machine name (severity 2) up vote 0 down vote favorite I have a problem in which I can not find a solution and I was hoping that you could help me out. I rolled back my server and now none of the php scripts can now connect to other servers. The scripts are up to date as the rollback is from last week. I get the SQL error: SQLSTATE[HY000] Unknown host machine name (severity 2) And on cmd I get: SQLState = S1T00, NativeError = 0 Error = [unixODBC][Microsoft][SQL Server Native Client 11.0]Login timeout expire d SQLState = 08001, NativeError = 10022 Error = [unixODBC][Microsoft][SQL Server Native Client 11.0]A network-related or instance-specific error has occurred while establishing a connection to SQL Ser ver. Server is not found or not accessible. Check if instance name is correct an d if SQL Server is configured to allow remote connections. For more information see SQL Server Books Online. SQLState = 08001, NativeError = 10022 Error = [unixODBC][Microsoft][SQL Server Native Client 11.0]TCP Provider: Error code 0x2726 On telnet I can connect to remote server. sqlcmd also lets me connect to the remote server Please if anyone could help me out. I do not know what to do next. All help will be greatly appreciated. This is a test script to try the connection $link = m

 

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