Home > Informix Error > Informix Error 956

Informix Error 956

Vamos prosseguir para as implicações, mas é importante que tenha ficado claro o que foi explicado acima antes de prosseguir para os próximos parágrafos. See the remote host administrator to ensure that the client host name is specified in /etc/hosts.equiv file for the remote host. Re: Client Host or user is not trusted by the serv (views: 775)PAUL GATHOGO -- Monday, 8 January 2007, at 8:48 a.m. O ficheiro /etc/nsswitch.conf contém  configurações que definem se o Informix irá usar ficheiros (/etc/hosts) ou servidores de DNS (configurados em /etc/resolv.conf). weblink

So, my point is that Informix should provide a way by which the DBA would request all the MSC VPs to call this function. This would be a great place to call res_init() by the way... os que vierem a seguir irão sofrer atrasos. Where am i going wrong on this?

From the DNS perspective, Informix is just another application. The reverse lookups fail and this affects the trusted connections.You start to see -956 errors in the online.log and -951 is sent to the client side You need to change your Isto pode ser provocado: [email protected]:fnunes-> echo $INFORMIXSERVER; grep $INFORMIXSERVER $INFORMIXSQLHOSTS; dbaccess sysmaster -blogtestblogtest onsoctcp nowhere.onlinedomus.com 1500930: Cannot connect to database server (nowhere.onlinedomus.com)[email protected]:fnunes->e se precisar de evidências do que se está a

Nas seguintes tal não acontece por razões de performance. HPUX where is installated informix 7.31 (I know is an older version, but I cannot change it now). 2. Answer Here's a list of things to check when facing such a problem: 1) Double-check the SQLHOSTS file for missing or mispelled entries regarding the DBSERVERNAME and DBSERVERALIASES onconfig parameter values; Estes atrasos podem ser uma fracção de segundo ou alguns segundos, mas em alguns sistemas já observei dezenas de conexões por segundo (já vi referências a centenas/segundo).

Pessoalmente habitualmente uso o número do porto directamente para evitar mais esta consulta..Depois, se o nome de uma máquina foi usado, o cliente terá de o converter para um endereço IP. Como vimos acima, na primeira chamada é verificada a configuração (ficheiros /etc/nsswitch.conf e /etc/resolv.conf). ERESTARTSYS (To be restarted)101 0.918564 --- SIGINT (Interrupt) @ 0 (0) ---102 0.000931 +++ killed by SIGINT +++And the explanation: Lines 1-5 the program starts and asks for the IP address. http://www.dbforums.com/showthread.php?1628459-Error-956-Not-trusted-server-client Let's start there and then I'll jump into the server.When a client tool tries to connect to an Informix server, it starts by looking up the $INFORMIXSERVER (or equivalent given in

On the the Suse(server), /etc/hosts.equiv file has an entry of the SCO(client) machine name. Join your peers on the Internet's largest technical computer professional community.It's easy to join and it's free. Como se pode ver começa logo com a consulta ao DNS Depois lê o ficheiro /etc/hosts Voltei a cortar a parte da autenticação como anteriormente Finalmente regressa ao estado de espera, Podemos apanhá-la se ligar-mos um debugger (dbx, gdb, adb) ao processo.

  1. Read 1 Mar 12 - IBM Data Management - Running Informix on Solid-State Drives.Speed Up Database Access...
  2. On the SCO machine(client), $HOME/informix/.rhosts file has an entry of my suse server. 2.
  3. Read 27 Jan 11 - exactsolutions - Exact to Add Informix Support to Database Replay, SQL Monitoring Solutions...
  4. So you asked for it, here it is.
  5. So, the problem in how it works is that if you want to change the policy (/etc/nsswitch.conf) or the DNS servers (/etc/resolv.conf), the Informix processes will not pick up the change.
  6. Read 3 Oct 12 - The Financial - IBM and TransWorks Collaborate to Help Louisiana-Pacific Corporation Achieve Supply Chain Efficiency...

From the OS perspective they all look the same (oninit), but every one has a specific role and runs certain engine threads. Register now while it's still free! Por razões que ficarão claras mais abaixo, vou desligar a funcionalidade NS_CACHE (11.7) e vou fazer uma paragem/arranque do motor. Cancel Red Flag SubmittedThank you for helping keep Tek-Tips Forums free from inappropriate posts.The Tek-Tips staff will check this out and take appropriate action.

But what happens when something is wrong? have a peek at these guys Read 20 Jul 10 - IBM Announcements - IBM Informix Choice Edition V11.50 helps deploy low-cost scalable and reliable solutions for Apple Macintosh and Microsoft Windows... Submit feedback to IBM Support 1-800-IBM-7378 (USA) Directory of worldwide contacts Contact Privacy Terms of use Accessibility Register Help Remember Me? Otherwise you'll not be comparing apples to apples The most complex is to run a truss or strace command against the MSC VP with timings.

They must work together and should be aware that their systems are tightly connected Use Informix 11.7 if you can, so that you can use REMOTE_SERVER_CFG. onlinedomus.com)  into an IP address (e.g. 89.1.2.3) and the opposite. RE: 956: Client is not in /etc/hosts.equiv on the remote host. check over here Conclusions What I tried to demonstrate in this article is how Informix interacts with the DNS system, if you configure DNS in your environment.

Acima tentei demonstrar como as coisas funcionam quando está tudo ok. In particular it can define if the system uses files, NIS, the DNS servers or other mechanism and the order it uses. breizhti (TechnicalUser) 30 Jun 03 06:22 Hi,to provide a fast answer, please provide :- sqlhosts file- DBSERVERNAME and DBSERVERALIASES in your ONCONFIG file- /etc/hosts- uname -, or hostname resultjean RE: 956:

Re: Client Host or user is not trusted by the serv (views: 759)PAUL GATHOGO -- Monday, 8 January 2007, at 8:06 a.m.

On the other hand, Informix 11.7 introduced a great feature to ease all this. Parts of this task are run by the MSC virtual processor. Fixe que isto foi feito na primeira tentativa de conexão. Note that at least in my test system (Linux) not even res_init makes the process re-read /etc/nsswitch.conf Make sure your DNS admins and DBA get along...

Há mais dois pontos a salientar. And it can save you if your DNS blows away (you could then add entries to the /etc/hosts file even temporarily). Ainda mais, na maioria dos casos as pessoas não têm a correcta noção do terrível impacto que uma má configuração no DNS pode ter nos sistemas.Não vou explicar (não o saberia this content So I call this with: [email protected]:fnunes-> strace -r -o test_resolv.trace ./test_resolvIntroduce an IP address: 1.1.1.1Unknown host (1.1.1.1).

Problemas de rede impedem a conexão aos servidores de DNSSe isto acontecer, os pedidos enviados pelo VP MSC terão de dar timeout (tipicamente alguns segundos) antes que as chamadas às funções See the UNIX manual pages on HOSTS.EQUIV(5) for more information. Read 25 Jan 11 - PR Newswire - Bank of China in the UK Works With IBM to Become a Smarter, Greener Bank... Pequena introdução ao DNS DNS é um acrónimo de Domain Name System, que é o protocolo/serviço capaz de converter um nome (ex: onlinedomus.com) num endereço TCP/IP (ex: 89.1.2.3) e vice-versa.

I'll run it interactively with tracing in order to show the effect of calling res_init(). Re: Client Host or user is not trusted by the serv (views: 780)Bill Marshall -- Monday, 8 January 2007, at 9:13 a.m. Advertisement dBforums Brief Subscribe to dBforums Brief to receive special offers from dBforums partners and sponsors Top Helpers healdem - 59 mark.b - 55 Pat Phelan - 54 ranman256 - 23 I've done it and here is the result: (gdb) break connectBreakpoint 1 at 0x95f640(gdb) continueContinuing.Breakpoint 1, 0x0095f640 in connect () from /lib/libpthread.so.0(gdb) where#0 0x0095f640 in connect () from /lib/libpthread.so.0#1 0x00aec9ab in

Portanto mesmo um atraso de alguns segundos pode ter um impacto muito notório.O segundo ponto refere-se à diferença entre a primeira chamada e as seguintes. tungaw2003 (TechnicalUser) 1 Aug 03 06:38 Did you install the php?. Let's see what can go wrong first and then the implications. As I mentioned above, the OS function calls keep the configurations in memory for efficiency reasons (it would be very "expensive" to re-read that for each call).

tungaw2003 (TechnicalUser) 1 Aug 03 05:19 You can find it in /u/www/conf/php/php.ini. Mas o que acontece quando algo está mal? Na perspectiva do strace esta não é uma "system call".