How to configure SQL*Net to survive minor dropouts?

Hi,
We have recently started developing over a VPN to our server. The VPN is not brilliant and we get minor dropouts for a second or so. This is causing SQL*Net to dropout and we need to re-connect and re-start all our Apps (SQL*Plus, Forms Builder, etc).
Is there an SQL*Net setting which can keep the connection open, even if the network drops for 1-2 seconds?
Cheers,
Tim.

Yes, a VPN is extremely important. Just as it's the job of DBAs to protect and maintain data, it is the job of a Network Administrator to keep the network functioning correctly. I'd say that having your NAs take care of the VPN problem is paramount to not only solving your issue, but also in keeping your company's infrastructure on-track and maintainable.
P.S. I was an NA in one of my previous lives :(

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How to decipher SQL*Net protocols/packets?

hi,
we have a customer that sells compliance solutions that basically track and audit information at the packet level. in order to expand their customer base they would like to offer their solutions to customer that have business systems built on Oracle Forms 6.x and Pro*C. to do this they need to understand how our network communication works. is this something that is generally available? here are some details for what the partner wants from us ...
Their product intercepts the communication between a typical Db client and Db server at packet level, performs analysis on the packets and extracts the information required for SOX compliance. It's been successfully installed and working for various versions of Oracle servers and Clients, however it does not handle Oracle Forms and pro*C clients.
It also wrks for pro*c client except for bind variables and arrays.
We need information on packet formats during communication between Oracle database and Forms and pro*c clients. This will help our product to work for SOX compliance for the customers who have FORMS and pro*c clients without replacing them
I know that form Forms to DB its SQL*Net, not sure what the protocol is for PRO*C to DB communication but do we have documentation on both?

Assuming you are on Windows, you can download the client installable from
http://download.oracle.com/otn/nt/oracle10g/10201/10201_client_win32.zip -- for Oracle 10g client
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If you are looking for any other version, please mention the same.

How To install sql*net

I am New to oracle please tell me how and from where, i can install sql*net client.
thanks

Assuming you are on Windows, you can download the client installable from
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How to secure SQL*Net over firewall?

A client application is in an insecure network. It has to connect via SQL*Net to a database server in a DMZ behind a firewall. The client application uses a database user with read-only permissions.
What measures are available, to restrict the client permissions?
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Regards,
D.

Depending on what it is you are trying to secure, you can use Oracle Advanced Security to encrypt all the traffic to and from the database, so no one can evesdrop on the traffic to the client machine. To get through the DMZ, you would probably need to install and configure Oracle Connection Manager. Some firewalls will proxy the Oracle connection through the firewall, as well.
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Justin
Distributed Database Consulting, Inc.
http://www.ddbcinc.com/askDDBC

How to check sql*net version

Hi,
I've read a support note that reports instructions and differences between SQL*Net 2.1 and SQL*Net 2.2.
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The database view v$version would obviously only report data for the database version in use and not the client.
If the client has sqlplus then the sqlplus banner should show the client version (SQL*Plus: Release) before listing the target database release information.
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HTH -- Mark D Powell --

How to configure Sql Server 2008 R2 for debugging without disabling Windows Firewall?

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>>
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How to configure SQL Server to allow remote connections

Hi,
This is RtPrasad.I am working in some software company.I am supporting an application in one of the projects.I am using windows 7 OS and SQLServer 2008 r2.When ever I am trying to connecting to the test server through SSMS from my lenovo thinkpad,I am getting
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are you connecting to office network through vpn? or is it that the sqlserver open to internet access?
Please Mark This As Answer if it solved your issue
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New to ESSBase. Installed successfully. How to configure SQL Source.

Hi,
Installed the following.
Installer
Foundation Services
Studio
Client
Within the Administartion Services console I am doing the following.
Created and application, db and outline.
Go to Data Prep Editor and try to use a SQL Source.
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In windows I setup the ODBC sources.
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Chandu.

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How configure sql developer/Oracle on mac?

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thanks, for reply, but what i need to know is how to install Oracle Devsuite on mac SO withoth install windows on virtual machine.

SQL*NET V1, V2의 STATUS를 확인하는 방법

제품 : SQL*NET
작성날짜 : 1995-11-06
* SQL*NET V 1의 적절한 사용 방법
ORASRV의 Permission, Owner 및 Group은 다음과 같이 설정이 되어 있어야 하며
파일의 Size는 Version에 따라 다를 수 있다.
-rwsr-xr-x 1 oracle dba 7544832 Jul 21 20:35 oracle
-rwsr-xr-x 1 root dba 303104 Jul 5 19:24 orasrv
만일 위와 같지 않다면 Unix 명령 프롬프트에서 다음을 수행하여 모드를 바꾸어
준다.
#chmod 4755 oracle
#chown root orasrv <= orasrv의 owner는 반드시 root로 되어야 합니다.
#chmod 4755 orasrv
1. SQL*NET V1을 사용하면서 가장 일반적으로 orasrv를 시작 및 정지 하는
경우이다.
#tcpctl start ( stop )
2. orasrv의 현상태를 확인하는 방법
#tcpctl status
tcputl: Status summary follows
Server is running :
Started : 4-OCT-95 15:58:48
Total connections : 0
Total rejections : 0
Active subprocesses : 0
ORACLE SIDs : RC,ORA722
Default SID : (null)
Logging mode is ENABLED.
DBA logins are DISABLED.
OPS$ logins are ENABLED.
OPS$ROOT logins are DISABLED.
Orasrv is detached from the terminal.
Break mode = OUT OF BAND.
Debug level = 1
Timeout (on orasrv handshaking) = 5 seconds.
Length of listen queue = 10
Orasrv logfile = /users2/oracle7/tcp/log/orasrv.log
Orasrv mapfile = /etc/oratab
* SQL*NET V2의 적절한 사용 방법
SQL*NET V2를 사용하는데 있어서 갖추야 할 파라미터 파일이 있다.
기본으로 listener.ora,tnsnames.ora,sqlnet.ora가 $ORACLE_HOME/network/admin
directory내에 있어야 합니다.(상기 파일에 대한 configuration은 SQL*NET
Administrator's Guide v 2.0을 참고하시기 바랍니다.)
1. SQL*NET V2을 사용하면서 가장 일반적으로 listener를 시작 및 정지 하는
경우이다.
#lsnrctl start (stop)
2. Oracle과 Listener의 Process를 확인하는 방법
$ ps -ef |grep ORA7
ora7 1343 1 7 Aug 22 ? 30:53 ora_dbwr_ORA7
ora7 1342 1 7 Aug 22 ? 0:32 ora_pmon_ORA7
ora7 1346 1 7 Aug 22 ? 0:00 ora_reco_ORA7
ora7 1347 1 7 Aug 22 ? 0:00 ora_s000_ORA7
ora7 1345 1 7 Aug 22 ? 12:25 ora_smon_ORA7
ora7 1344 1 7 Aug 22 ? 58:57 ora_lgwr_ORA7
ora7 1348 1 7 Aug 22 ? 0:00 ora_s001_ORA7
ora7 8036 1 7 Aug 22 ? 0:00 /ora/ora7/bin/tnslsnr LISTENER -
inherit
ora7 24279 1342 7 09:40:16 ? 0:05 ora_d001_ORA7
ora7 899 1342 7 14:54:36 ? 0:21 ora_d000_ORA7
3. Listener의 현상태를 확인하는 방법
$ lsnrctl service
LSNRCTL for 88open UNIX: Version 2.0.14.0.0 - Production on 24-AUG-94
09:19:37
Copyright (c) Oracle Corporation 1993. All rights reserved.
Connecting to (ADDRESS=(PROTOCOL=IPC)(KEY=ORA7))
Services Summary...
ORA7 has 3 service handlers
DEDICATED SERVER established:0 refused:0
DISPATCHER established:0 refused:0 current:0 max:60 state:ready
D000 (machine: AViiON, pid: 899)
(ADDRESS=(PROTOCOL=tcp)(DEV=6)(HOST=152.68.1.11)(PORT=2753))
DISPATCHER established:0 refused:0 current:0 max:60 state:ready
D002 (machine: AViiON, pid: 1357)
(ADDRESS=(PROTOCOL=ipc)(DEV=5)(KEY=#1357.1))
The command completed successfully
4. SQL*NET V2를 MTS와 DEDICATE방식으로 사용코자 할때.
MTS 방식 : ps -ef | grep s0 으로 시작하는 공유 process 를
띄어두고, tnsnames.ora 에 MTS 와 같은 alias 를
사용하여 접속한 session 들이 각각의 oracle process 를
띄우지 않고, 공유 process 를 사용하는 방법
dedicate 방식 :
tnsnames.ora 에 MTS_DED 와 같은 alias 를 사용하거나, alias 없이
server 에서 접속하는 유저들은 각각의 oracle process 를
기동시켜고 공유하지 않는다
$cd $ORACLE_HOME/network/admin/tnsnames.ora
MTS =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS =
(PROTOCOL = TCP)
(HOST = Hostname)
(PORT = 1521)
(CONNECT_DATA =
(SID = ORA7)
MTS_DED =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS =
(PROTOCOL = TCP)
(HOST = Hostname)
(PORT = 1521)
(CONNECT_DATA =
(SID = ORA7)
(SRVR = DEDICATED)
5. SQL*NET V2 Pipe Adapter를 사용중이라면 ps command를 통해서
oracleSID (LOACL=YES)라는 Shadow Process로써 확인 할 수 있다.

오랬만에 게시판에 들어오니 좀 썰렁하네요..
자주 들어와서 확인좀 하겠습니다.
SQL*NET V1 프로세스 수동 기동 중지는
기동
tcpctl start 중이
tcpctl stop

OS/390 (MVS) to Unix - SQL*Net - Exists?

I am going to start working with Oracle under MVS (OS/390).
I am familiar conceptually with the concept of SQL*Net and its distributed architecture enablement.
From a MVS perspective, does such a concept exist that would allow me, from MVS, to talk to an installation of Oracle on Unix via something like SQL*Net.
I have searched the documentation without success on this subject.

This is not a problem. You must configure SQL*Net, of course according to OS/390 rules and then you can connect to servers on any other platform. We do it at our site. Here's a working example for tnsnames, using TCP/IP:
# TNS CONNECT DESCRIPTORS
# LOOPBACK FUER ORA8
# MVS-Loopback
ORA8LOOP = (DESCRIPTION =
(ADDRESS =
(PROTOCOL = TCP)
(HOST = hame)
(SSN = NET8)
(PORT = 1520)
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GISA = (DESCRIPTION =
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Pretty frustrated with my tune up using suggestions from many papers for Oracle 10g R2 on AIX 5.3 L system. My users told me that the system (including Baan 5c) still responds slowly in some processes, some even worsen.
Using both queries such as
SELECT sid, schemaname, status FROM gv$session ORDER BY 2;
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INST_ID SEQ# EVENT P1 P2 P3 WAIT_TIME
1 1 SQL*Net message from client 1413697536 1 0 6419
1 2 SQL*Net message to client 1413697536 1 0 0
and others similar, I found very large numbers (almost 97%) of the sessions have events as “SQL*Net message to client” and “SQL*Net message from client” on their wait_time even the sids are in inactive status. After checking the meaning of those messages in Oracle Performance and Tuning document, the document states that mainly they are probably network problems. So How can I drill down to what status of network from my client (the users) to server by Oracle or AIX? In Baan, it has its own parameter sets in its db_resource file controlling the connectivity. In average, there are 4000 “opened cursor current”, but most of them inactives.
So my colleague asked me rollback all th changes I did on OS level such as minperm%=5
maxperm%=90
maxclient%=90,
lgpg_regions lgpg_size,
sys0 maxuproc=512,
aio0 maxservers='260'
and many ioo parameters to system defaults.
I even removed the mulitplex copy of the redo log.
I tried to proof them that there maybe the problem of the Baan/Oracle connectivity, ie due to message above,

http://docs.oracle.com ... read them for configuration information.
http://tahiti.oracle.com ... read them for recommendations.
http://otn.oracle.com ... find the best practices docs.
http://metalink.oracle.com ... look for similar issues to yours.
People that change things, on production boxes, without first determining that metrics indicate they are a good idea, and then determining their impact on a test box, should be sold to zoos as leopard food.
PS: Slowly likely has absolutely nothing to do with anything you touched. First you tune the application. Then you tune the database. Then you tune the operating system. Get out of the way and make the DBAs do their job.

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Roberto

hi,
If you are installing D2K on '98 please insure the following:
1. does the cient machine have orawin95/98 folder?
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Hi bkt.engineer,
Yes, it is possible to override the default WCF DataContractSerializer behaviour when Serialize/DeSerialize entities and use JSON.NET instead. For more information, please try to refer to this similar thread:
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Sql Net*8 Easy configuration on client not responding

We are evaluting Developer 6.0 Beta version.
Sql Net*8 is working well on the server side(Window Nt) no probs
but at the client side (Windows 95) when we click
start->oracle for windows95->Sql Net*8 easy ,no resond screan
appears. So we go for manual configuration of tnsnames.ora
and for that we copy tnsnames.ora from the server side which
is working fine but at client side when we try to loggin to
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we had loaded tcp/ip protocol of microsoft.
null

Ankur diwan (guest) wrote:
: We are evaluting Developer 6.0 Beta version.
: Sql Net*8 is working well on the server side(Window Nt) no
probs
How do you know it ?
: but at the client side (Windows 95) when we click
: start->oracle for windows95->Sql Net*8 easy ,no resond screan
: appears. So we go for manual configuration of tnsnames.ora
: and for that we copy tnsnames.ora from the server side which
: is working fine but at client side when we try to loggin to
: oracle 8 database using sql*plus we get the following error
: ORA-12222:TNS no such protocol adapter.
: we had loaded tcp/ip protocol of microsoft.
Can you ping from client to server ?
Is TNS listener on server started ?
null

How to configure SQL*Net to survive minor dropouts?

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