The tag has no usage guidance.

learn more… | top users | synonyms

-3
votes
0answers
11 views

How to configure port rs232 [closed]

I would how to develop application with php/C#/java for configuring rs232 port between different machines.
5
votes
0answers
34 views

Excessive Prelogin Packets

Running a client/server application where the client app is powered by MS Access and the database on the server is in SQL Server. We have two locations and have active users at both. We recently moved ...
0
votes
0answers
18 views

MySQL - What does ODBC's BIG_PACKETS option do?

I have seen the line OPTION=10 in some connection entries in ODBC.ini files, and found that it corresponds to the options 2 and 8. Those are defined in the documentation (PDF) as the following (...
0
votes
1answer
49 views

SQL Server Express 2014: Network Access

I have SQL Server Express running on one (virtual) machine running Windows 8.1, but I cannot connect to it from another. I have followed the instructions on https://msdn.microsoft.com/en-us/library/...
0
votes
0answers
9 views

Python and SQL exception handling when internet cuts out

I have a python temperature monitoring program that runs every 30 seconds on my raspberry pi, and uploads the data to an SQL server. I am using try: and except: however this doesn't handle if the ...
0
votes
1answer
41 views

Connecting to MySQL VM remotely (Azure Resource Manager)

I have a VM setup in Azure (running Windows Server 2012 R2) with MySQL 5.7 installed. I am trying to access this using MySQL Workbench - which when running on the server works perfectly. However, ...
1
vote
2answers
30 views

MySQL Replication issues on server placed in different continents

I am running 2 cpanel servers with MySQL Replication set on them, one in france the other in US. Running a database hungary site. Replication was setup to load balance as well as for failover reason ...
2
votes
2answers
178 views

Does UDP Port 1434 need to be open for named instances with static TCP?

I have built a named instance which is running on a static port, 50101. The network guys have opened the port on the firewall to allow incoming connections. I have asked them open UDP port 1434 too, ...
0
votes
1answer
15 views

Allow access to RackSpace database from Vagrant box

we have two developers using Vagrant (which has it's own internal ip like: 10.0.2.0/24). On RackSpace we have a percona database instance. We would like to allow read/write access to that database ...
1
vote
0answers
28 views

Slow query speed using workstation processed joins with 100 Mbps connection speed?

In a department where they were complaining that a report was being run slowly, I jumped on one of the empty machines there and tried it out. It took a good 6 and 15 seconds to run. Run from a ...
0
votes
0answers
49 views

Untrusted domain error connecting to another group in workgroup SQL Server 2014

I have two computers connected in a workgroup that are sharing files and folders. When I try to access the SQL Server of the other computer I get the same error from both. Login failed. The ...
1
vote
0answers
28 views

Sync job issue, maybe network related?

I have a job that syncs rows in a table between a production server and four other servers. The problem is the job runs perfect on three servers, taking less than 2 seconds. On the fourth server, it ...
0
votes
0answers
42 views

SQL server is replicating to wrong subscriber

I have a publication which is intended to push data to a subscriber over the internet from a remote server to our onsite local subscriber but it ends up on a wrong subscriber.Here is the scenario: ...
1
vote
1answer
134 views

High data traffic from MySQL server to web server

I have one webserver running Magento : Community Edition 1.7.0.2 and a separate machine with MySQL 5.5.42 on it. Both machines are EC2 instances. I am seeing huge unexpected data traffic from the ...
2
votes
0answers
66 views

How to avoid Network issues for SQL Server 2012 AlwaysOn

I have SQL Server 2012 and have setup AlwaysOn for High Availability. The infrastructure is on Azure VM's. After moving to this setup, we are frequently observing Network issues which either causes ...
2
votes
1answer
271 views

SQL Bulk Insert Impersonation issue

I am running Microsoft SQL Server 2012 SP on a Windows Server 2008 R2 Standard SP1 box. The SQL Server service is running as a simple windows domain user (nothing special, no admin rights, etc.) I am ...
0
votes
1answer
169 views

unable to connect to specific instance ORacle RAC

I did several operations by connecting successfully to all 4 instances but suddenly during one of the jobs, it failed with a TNS error. I checked the connect from SQL and one of the nodes is giving an ...
0
votes
0answers
15 views

Optimise communication to check record status

Imagine an universe full of products. I have an app that electronically marks products and saves this status into the server DB. The app may be used from different devices so each one will mark ...
2
votes
1answer
52 views

SQL Native Client and network disconnects

Does the SQL Native Client provide support for maintaining a persistent connection over the network at the driver level if there is a momentary network disconnect like a 999 error? Our applications ...
2
votes
1answer
173 views

Fast local backup - Very slow backup via Network

Since last week, i'm having this problem. Backups are taking forever to be done if I make them via Network. If I backup the database to a local disk ( or N'nul' ) it's very fast. It's strange ...
0
votes
0answers
65 views

Startup Oracle Database with an NFS mount on the control file

I currently have an Oracle Database which works just fine on 1 server. I want to share the folder which contains its' control file to another server via an NFS mount. However when mounted I get ...
1
vote
0answers
41 views

SQL AlwaysOn Availability Groups network performance

Our customers are asking to implement our products while configuring AlwaysOn Availability Groups ( between two FCI with Asynchronic commit ). The DR server is geographically far from the Production ...
8
votes
1answer
258 views

Does RSS Profile have an effect on SQL Server with NUMA setup?

I'm curious whether the RSS Profile which is default NUMAStatic on Windows 2012 R2 could/should be changed for SQL Server with a NUMA setup. Has anyone done performance benchmarks on high load SQL ...
2
votes
0answers
89 views

Networking (classmate like) website database model

I am working on a project that consists in building a networking website like the Classmate web site. I have proposed a database model based on the social media database model presented on the ...
1
vote
0answers
21 views

Postgres with no clients still chatty on network

This may be a non-issue but I was doing some network monitoring on my Mac and noticed that PostgreSQL (9.4.4) was still sending and receiving packets even when I'm not aware of any clients (localhost ...
0
votes
1answer
318 views

How to configure SQL Server Port on multiple instances?

I have a server called SQLDWDEV01, with 2 instances: default and UAT. To the default instance that uses port 1433, everything works fine. However, the UAT instace, which I configured according to ...
4
votes
2answers
144 views

How to backup MS SQL Server databases off-site?

Microsoft SQL Server supports backing up to remote network locations only by means of UNC names the SQL Server (and user account it's running under) has access to. Is it possible to create backups ...
1
vote
1answer
122 views

How to grant access to IP range in Postgres?

I would like to configure my Postgres DB to be accessed by any IP 10.8.101.*. I know I have to create a rule in pg_hba.conf but I'm not sure what it should look like. My LAN IP is currently 10.8.101....
4
votes
1answer
204 views

Is this a sane model for a network provisioning system?

I'm sketching out a model for a network setup, where I have the following conditions: There are multiple nodes which contains a number of switches each. Each switch has multiple services, which may ...
0
votes
1answer
35 views

Connection to a MySQL server fails after server restart

Until this morning I could connect via Sequel Pro to one of our networked machines that has the MySQL server on it. Today, however, it's another story: when I am trying to connect, it times out. Even ...
7
votes
1answer
341 views

Can SQL Server be configured to backup to a network share through a separate NIC?

We're in the process having our SQL Server instances backup to a network share, but our network admins want to try and divert the bandwidth from the backups through a different network segment. I was ...
0
votes
2answers
187 views

Best practices for generating a tnsnames.ora entry

I need to integrate some scripts that export and import data from Oracle databases. They are shell scripts that rely on the TNS name being set up (e.g., scott/tiger@tns). The application owners are ...
1
vote
1answer
84 views

Network connection from old application to SQL Server 2008 R2 lost once in a while

I have put this question on serverfault.com as well, but since the problem concerns connecting to SQL Server, I will also put it here. We are trying to migrate an Axapta 2.5 database from SQL Server ...
2
votes
1answer
1k views

Can you put a SQL DB on a NAS? [closed]

Can you put a SQL DB on a NAS drive? For example can I put the PostgreSQL DB "files" on a Sinology NAS or am I better to leave everything on a "real" PC? (like, say, a regular PC server running Linux) ...
13
votes
3answers
2k views

Will increased network latency cause table locks in MS SQL Server?

If I'm making a single call to a SQL Server database over a high-latency network, will table locks occur due to that latency? Say I query table A for some records, and SQL Server has to return that ...
0
votes
1answer
52 views

Does SQL Server handle databases on SMB shares different than on Hard Drives?

Does it, for example, automatically recover from network hiccups, perhaps? If so, would masking the file share under a symbolic link change that behavior, or does SQL support symlinks to file shares, ...
2
votes
1answer
85 views

What methodology is being used to poll SQL instances when using sqlcmd with the -L switch?

I've discovered that issuing sqlcmd -L from the console of a SQL host in my network only reveals other instances on the same subnet. It used to reveal all instances on the network so I was wondering ...
1
vote
2answers
4k views

Best practices for service name / aliases in tnsnames

I have this idea that service names / aliases given to connections descritors in a tnsnames.ora (not the one in the server that dblinks use, but the one for the public) file should in no way be ...
2
votes
1answer
1k views

Does Oracle run queries to completion after SQLdeveloper disconnects?

The query is a CREATE TABLE t as SELECT .....; statement. Can I reliably count on Oracle to complete this after I disconnect? After I re-connect, how can I check on the status of this query?
0
votes
2answers
3k views

Connect to Oracle DB 9i using SSH TUNNEL via putty [closed]

I am trying to connect to an Oracle database behind NAT. Therefore I create an ssh tunnel using putty. This is the network information: global IP example: 122.54.34.12 LAN IP example: 192.168.3....
0
votes
2answers
2k views

How to resolve “Error log file size is increasing in mysql 5.5” issue w/o restarting mysql

I have an Ubuntu server with MySQL 5.5 installed. In /var/lib/mysql a .err file is kept on updating with these warnings only: [Warning] IP address '234.22.11.221' could not be resolved: Temporary ...
0
votes
1answer
84 views

XML Network Call to Application from SQL Server 2005

We don't really have a DBA here, just a semi-experienced SQL Developer and me. I've only got about a year's experience myself and we're the only programmers for our small business. We're trying to ...
0
votes
1answer
351 views

When I convert the linked tables to local tables I got this error? [closed]

Referential integrity cannot be enforced between linked tables and local tables. Enforcement of referential integrity will be dropped on all relationships between tables converted to local and tables ...
0
votes
1answer
261 views

Access Database that is shared with my company on a network drive..When I copy and paste it to my desktop there linked some how?

I have an Access Database that is shared with my company on a network drive..When I Click on the drive and copy and paste it to my desktop and make changes to it the database that is on the drive also ...
1
vote
1answer
1k views

What happens to a transaction if the network connection fails?

What happens to a transaction when the client connection is lost. Example the client is a web application code that starts a transaction to a remote server instance. The client sends the sql code to ...
5
votes
4answers
18k views

Changing IP address of SQL Server 2008 R2

I would like to know if there are any dangers or relevant precautions before changing the IP address of a SQL Server 2008 R2 box. We have built a virtual PC with Windows Server 2008 R2 and SQL Server ...
3
votes
2answers
948 views

SQL Server Configuration Manager 2012 - unable to set IP All = No

I have a 4-node SQL Server 2012 SP1 cluster, and under Network Configuration -> TCP/IP -> Protocol (tab), I am able to switch Listen All from Yes to No. However, when I hit OK (or Apply), I get the ...
2
votes
1answer
804 views

SQL Server connection fails over VPN

I have an OpenVPN network consisting of VPN server (Linux), client (win8) and SQL Server (win 2008 server, SQL Server 2005), I'm trying to (of course) connect client to server. When I try to connect ...
1
vote
1answer
831 views

How to isolate that network is issue of bad query performance [closed]

I would like to know how to isolate SQL Server bad query performance is caused by NETWORK and not the SQL Server. Are there any specific tips and tricks in SSMS, wait types, or specific PerfMon ...
1
vote
1answer
2k views

How Should TCP/IP be configured to allow an external application access to SQL via the same port #?

My SQL Server instance is hosted on an internal network server (10.x.x.x address). It's a named instance currently using dynamic ports. An external application at a third-party hosting location ...