A connection generally refers to a TCP/IP connection, that is established as the result of the handshake between 2 hosts.

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5
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2answers
141 views

Effects of internet connection speeds on server queries

Can my internet connection significantly effect queries run on phpmyadmin? I am currently 18 down and 30 up. I switched internet connections today and noticed a deep drop in query performance. The ...
4
votes
4answers
959 views

How to wire 20 computers and 20 phones and 1 server into LAN?

I have currently 3 switches Two Netgear JFS524 with 24 slots, One Belkin with 16 slots. Server DSL Internet Router. Main question is how to connect switches together, two Netgear's are next to each ...
9
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3answers
111 views

Log connections to program

Besides for using iptables to log incoming connections.. Is there a way to log established inbound connections to a service that you don't have the source to (suppose the service doesn't log stuff ...
0
votes
1answer
1k views

Connecting To FMS Server Issues

I am trying to get my computer to connect to an Adobe Connect server but I have had no luck. The error that Adobe is telling me is "ERROR: FMS Server did not return correctly!" and have done some ...
0
votes
1answer
228 views

apache local network

I am trying to reach my local Apache from another source in the local network. The IP of the machine running Apache is 192.168.2.36, the os is xubuntu 12.04. Via this machine I can reach the Apache ...
3
votes
6answers
22k views

SQL - an error occurred during the pre-login handshake

Until yesterday evening, I was able to connect to my server from my local machine. Now, I get the following error: A connection was successfully established with the server, but then an error ...
0
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1answer
765 views

Enable: Asp.net connection pool monitoring with performance monitor

I'm a C# developer, but I'm running in a system management issue here. Intro: I'm suspecting that an ASP.NET application is having some issues with the connection pool and that the pool is flooding ...
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0answers
6k views

Cannot telnet to SQL Server on port 1433

I've been working solidly on this issue for the past three weeks. I cannot seem to find where the actual issue is. I just recently found this article on how to troubleshoot the connection. I made it ...
0
votes
4answers
8k views

Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2) on subsequent connection through terminal

My sincere apologies for asking something that obviously has been answered before. The fact that I'm posting is that i would like to be absolutely sure since it's about a live server running ...
2
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0answers
46 views

How normal are remote connection faults and what do they mean? [closed]

Quick background: I have been having a lot of connection issues with my home network. I finally got my ISP to understand and after them checking some of the problems outside of my home I've gone from ...
0
votes
1answer
518 views

Where do you find logs about connections on debian?

I installed nginx on debian and then tested it with wget localhost and wget 192.168.1.11 to see if it responds to simple requests. After this i changed the default root folder to /var/www and tried ...
0
votes
1answer
278 views

Mac Mini Server network connection issue

We have a Mac Mini connected to our network and are using it as our mail server which works fine. The issue is that we have a photocopier/scanner connected to the network and we can't send scan a ...
1
vote
1answer
119 views

Java Tomcat SQL 2005 connection failed

I am in a bit of strange situation when it comes to debugging this issue. I am working with a client who has a 3rd party administrate their servers, and that 3rd party does not allow for any changes ...
0
votes
1answer
236 views

Keep-Alive is active, where is the close coming from?

Apache server SuPHP (php as CGI?) When I look through phpinfo, I see Keep-Alive as being active/on. When I use tools like RedBot, I see Connection: Close If I set Headers (via htaccess or php) as ...
1
vote
1answer
4k views

TCP connection reset in linux(strange packet loss) but not on windows

It is all good on windows, but on linux when I try to retrieve a specific web page, I get a long wait and then a "connection reset by peer" Pinging destination IP works fine. I tried to reduce ...
6
votes
1answer
2k views

Load balancing MySQL using HAProxy: Got an error reading communication packets?

I've set up load balancing MySQL slaves using HAProxy via a xinetd. 2 load balancers shared a virtual IP that is managed by Pacemaker: crm configure show: node SVR120-27148.localdomain node ...
2
votes
1answer
667 views

iftop Shows Lots of Mysterious Connections - Not Showing in netstat

I've just stopped all pretty much all services except sshd on my server (Ubuntu Server 10.04), and when I run iftop I get output that looks like this: 12.5Kb 25.0Kb ...
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votes
1answer
623 views

Connect to server via SSH2 [closed]

I'm using http://www.hetzner.de/en/. They send me something like that: Your Hetzner-Server is now active. Thank you for choosing Hetzner Online as your Web Hosting partner. You can access your ...
0
votes
1answer
114 views

PCs losing connection to server

I'm going to try my best to describe the problem since I'm not the SysAdmin! At my office, we have multiple PCs who connect to a Microsoft Server 2003 - Entreprise Edition. We didn't do any ...
0
votes
2answers
294 views

Mysql too many connections but not visible in fullprocess list

I got a big problem, I guess it's something like a dos attack but I am not sure. Since this morning, my database is very slow and gives me 7/10 times a too many connections error or tries to login ...
3
votes
1answer
1k views

Out of nowhere, ssh_exchange_identification: Connection closed by remote hot me too

See similar: Out of nowhere, ssh_exchange_identification: Connection closed by remote host Today, 6/19/12 attempting to ssh to the same host as usual ssh replied ssh_exchange_identification: ...
0
votes
1answer
1k views

Increase Openfire connection pool - maximum connections

I have Openfire 3.7.1 install on Linux (RHEL). How I could increase maximum connections? Current values: Maximum Connections: 25
0
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2answers
6k views

Postfix Send Error: Must Issue STARTTLS command

Running Ubuntu 12.04 and trying to configure postfix to relay send and receive through GMAIL. Am running into connection issues particularly with TLS. Have tried a bunch of troubleshooting solutions ...
1
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0answers
534 views

java.net.ConnectException: Connection timed out, Tomcat 7 and iptables

I am experiencing a weird problem.. Basically our Java developer said that in the java application the services that access the db to write on it get this error: java.net.ConnectException: ...
1
vote
0answers
50 views

VPN Network intermittantly fails to provide internet: What could be possible causes

We have a small office with our own VPN setup. We occasionally experience failures in our internet connection where we cannot access the internet. Most of the time the internet connection will resume ...
1
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2answers
305 views

Connection closed by IP ( Linux Redhat) while ssh to Amazon server

I am accessing my server on Amazon AWS via ssh and suddenly its no more accessible via ssh. I am getting " Connection closed by 'Live IP Address of Server' " error. I think there are too many ...
0
votes
1answer
297 views

apache returning “The connection was reset”

One of my dedicated servers had some network issue today and the data center has to replace some router. Since then the sites on that server returns "The connection was reset" error most of the time. ...
0
votes
2answers
3k views

sftp concurrent connection

I have to setup my server to receive 20-30 concurrent sftp connections from different clients using same username. I've tried to test this simulation user connections with scp. The problem is that ...
3
votes
1answer
1k views

Unclosed TCP connections in CLOSE_WAIT for various processes

I have cluster of several machines connected on 10GBE network (NICs are Intel 82599EB 10GBE SFI/SFP+) running under Debian 6.0 and faced with problem of hung up TCP connections in CLOSE_WAIT state. I ...
0
votes
1answer
725 views

ssh connection refused with out iptables rulles

I changed the ssh port from 22 to 2021 and it worked correctly till 3hours ago,after that when I can't connect to ssh. ssh: connect to host 130.185.72.125 port 2021: Connection refused so I checked ...
1
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1answer
26 views

Server “connection” implication in a web page load

I'm talking with a "tech guy" and he's asserting that: if a user open a web page (for example www.mysite.com/mywebpage.php) and leaves the browser open, the connection with the server remains open ...
0
votes
2answers
324 views

Can't reach remote desktop anymore with RDC

We have a 2 backup machines that we use to manage via Remote Dektop Connection; Suddenly one of them can not be reached anymore by RDC. The other one is still accessible. I can ping the first one, ...
0
votes
1answer
304 views

RDP fakout when connectiong: does nothing, no error

Using windows RDP, I'm trying to connect to a remote machine to which I connected fine moments earlier. I had to reboot the server... Now, I type in my credentials and it looks like its working (the ...
0
votes
2answers
5k views

Cannot login SQL Server after changing machine name

After installing and setting up new machines in a domain, we decided to rename one of them which had a SQL Server instance installed. So I changed the hostname, everything went fine regarding the ...
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2answers
1k views

IIS Connection String not being inherited

I have an issue where I've set up a connection string at the Machine level in IIS, and it is inherited all the way down as expected... EXCEPT for the application I want to use the string in. Other ...
0
votes
1answer
94 views

connection hanging

I'm trying to get to the bottom of a connection problem. My payment processor uses port 4330 and has no firewall for incoming connections. My hosting company blocks this port by default but has ...
0
votes
2answers
304 views

Why does the connection break when I kill a process on remote host?

I login to the remote host (debian) by ssh and execute a command like this ssh user@remote_host "ps -ef | grep process_name | grep -v grep | awk {'print $2'} | xargs kill -9' then the connection ...
-4
votes
1answer
74 views

What type of connection to get for a web server [closed]

I've been doing some research about this topic but I had no luck finding my answer. Will a 2Mbps G.SHDSL connection do the work or should I go with a 5/10/20Mbps Metro Ethernet connection? Or am I in ...
0
votes
1answer
356 views

sql server 2008 r2 can connect with connection manager but noway else

I have installed (3 times on 3 machines) sql server 2008 r2 can connect with connection manager but other program cannot connect. I can connect to remote sql servers with heidisql or with my ...
0
votes
2answers
939 views

Windows Server 2008 dropping connections [closed]

Possible quite similar to this post but I wonder if someone can help me with this issue. Home Server specs: Windows Server 2008 Standard (Non-R2) 2 NICs, external one(Realtek) has a firewall on it. ...
1
vote
1answer
557 views

netstat reports ESTABLISHED connection even after I've pulled the cord

I'm experimenting with lost connections between my java application and my mysql server. The application and the server are on two different machines and I'm pulling the physical cord between the ...
1
vote
1answer
242 views

MySQL connection issue with error 2003 / 111

I'm running a mysql server using the following command: mysqld --no-defaults --user=root --port=3310 --bind-address=0.0.0.0 --skip-grant-tables & My understanding is that this command starts ...
0
votes
1answer
157 views

Windows Server 2008 r2 Server VPS: every connection capped at 500kb/s

I have a strange problem on a Windows Server 2008 r2 Server based VPS. My provider gives me unmetered and unlimited bandwidth, and obviously full root access (I administer the machine via RDP without ...
0
votes
1answer
127 views

Mailserver 1 <--X--> Mailserver 2

First I try to explain my server environment. I have two virtual servers, the host server is Ubuntu. The mailserver is Debian Squeeze installed with this tutorial: ...
2
votes
3answers
360 views

Fast, reliable data transfers from/to China

We are a small company and we will need to transfer rather large amounts of data (10GB+ each time) between Europe and China in the near future. As many may have experienced, Internet connections to ...
0
votes
1answer
554 views

Network disconnect each day almost same time

I have dhcp server (win server 2008 R2). Got about 30 pc in network. But I am facing problems on 2 of them. I have set IP manually on them. Problem is, that these 2 comps disconnect from network ...
1
vote
1answer
70 views

connect to SQL Server 2008 r2

I found about a dozen questions like this, read them all, but still can't find the problem. I have a dedicated server running SQL Server 2008 R2 express. I enabled TCP/IP, added firewall exceptions, ...
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votes
1answer
351 views

Server can't connect to the internet

I have a headless file server running debian that just stopped connecting to the internet. Console output: Dmesg: [ 84.248344] ADDRCONF(NETDEV_UP): eth0: link is not ready [ 85.941389] svc: ...
2
votes
1answer
81 views

Are there any other causes of this error that are NOT related to initial setup?

I'm trying to diagnose an issue at a customer site. They are receiving the following error: A network-related or instance-specific error occurred while establishing a connection to SQL Server ...
1
vote
2answers
457 views

Clients can make maximum only 15 connections to ubuntu custom server

I have a custom server in C# being run on Ubuntu 9 under mono. I can make up to 15 silverlight clients connect to the server. When I make the 16th, it just waits. And if I close one of the established ...