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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2k views

apache webserver unresponsible with server-status showing all child processes waiting for connection

My setup: i have 3 nearly identical webserver machines serving the same high loaded dynamic website with simple load balancing over dns. The service has been working for over two ears with the same ...
3
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1answer
238 views

SSH connection closed/dropped a few seconds after successful log in (EC2/linux/debian)

I have been using ssh to connect to the same EC2 instance for months. Now, all of a sudden, I am getting kicked off the server every time I try to do so. The amount of time I can remain connected ...
2
votes
1answer
72 views

postfix stops accepting connections from certain IPs

I had postfix up and running, and I think it was complete, although there was still a little testing to do. But at some point, it stopped accepting connections from my home computer. I tried to telnet ...
3
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211 views

Unix socket connection limit

This may appear like an already discussed/answered question. But I am specifically looking for info which I couldn't find anywhere answered clearly. I have an Nginx + php-fpm setup which uses unix ...
2
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0answers
96 views

what can put linux process managing connection pool into bad state, so it restarts them continously?

I have an application with pool of connections to MySQL. At some point, in production, every 1-3 seconds some socket is closed. As a result my app restarts this connection. This is pretty big pool ...
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166 views

Apache2 mod_proxy_fcgi closes a connection after each request

I set up mod_proxy_fcgi do go with apache and php-fpm. If I read the FCGI spec correctly, the typical flow for the communication between a server is to keep the connections between the web server and ...
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0answers
437 views

SQL Server 2008 R2 Express connection error

Hi I'm having issues with SQL connection for a client PC We have software that uses SQL database, and I have just updated from SQL2005 to SQL2008 We have 5 pcs: 2 x vista (32 bit) 2 x win7 (64bit) ...
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0answers
197 views

VMWare ESXi 5.0 Networking Issue

I have an issue with 2 new ESXi hosts. OS - ESXi5.0 Custom Dell ISO patched up to Build 1024429 DELL R820 with 1G network 2 ports from integrated MB NIC(Intel) connected to 2 juniper switches, one is ...
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0answers
93 views

Mystery WIFI connection interruption

The issue is that Windows users disconnected from WIFI network every 2~10 minutes, Mac users are less frequent but still get kicked off 1 or 2 times a day. We don't have such issue with any wired ...
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0answers
306 views

SQL Server Replication Requires the actual server name

How Hard can it be? Ive spent the last 4 hours googling just to find either nothing works, or people randomly posting information that 'sounds good' My setup: Two SQL2012 Servers, in two different ...
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0answers
167 views

Random, sustained connection failures

My first question here - hope I'm in the right place. In essence, I have a Java app that occasionally seems to have difficulty connecting and I've run out of ideas for where to look. Hoping for some ...
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0answers
415 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: ...
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0answers
49 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 ...
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0answers
100 views

Setting the connection timeout in virtuoso server via connection string

I started the virtuoso service on windows with the following configurations (this is the important part of the config file): ResultSetMaxRows = 10000 MaxQueryCostEstimationTime = 40000 ; ...
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0answers
493 views

apache as proxy server ftp request connection times out for certain connections

I have setup my apache to act as proxy server by configuring it as: [server]# cat /etc/apache2/httpd.conf Listen 10.2.28.56:8787 ProxyRequests on <Proxy *> Order deny,allow Deny from ...
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0answers
368 views

Switched Oracle to use Shared Servers, now Java app throws SQLRecoverableExceptions

This issue might blur the line between Java and database problem, so I apologize if this is the wrong place for it. Not sure which side is to blame yet. I'm a Java developer temporarily playing DBA ...
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432 views

Load balancer unable to contact a server through http

In our infrastructure we have a load balancer(apache mod_balancer) and three backend servers that run apache as a web service and iptables as firewall, Lately ONE of them is giving a lot of " ...
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0answers
16 views

Connection is not persistent when using EVDO data card

I use a BSNL EVDO wireless data card. So, with this I cannot get my connection persistent i.e I cannot load Facebook, Gmail or Google search properly. If I enter a word and hit enter in Google search ...
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0answers
81 views

Why would a client send a RST packet as reply to a SYN,ACK?

I have a HTTP webservice where sometimes the connection setup fails in a strange way: client sends a SYN packet server sends a SYN,ACK reply client responds with RST In which situations could a ...
0
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0answers
19 views

Remove hosts from Hyper-v virtual machine connection list

When using the Hyper-V Virtual machine connection program to connect to a VM on another host, you can type the name/IP of the host in the first drop down, and then the second dropdown populates with ...
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0answers
48 views

Establish an SSH Tunnel out from behind a firewall

I have a box sat behind a firewall, and when its powered on (or internet connection resumed), I want it to connect to a server, allowing me to do a reverse SSH connection back to it. I'm currently ...
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0answers
54 views

ORACLE keep-alives with ENABLE=BROKEN with ezconnect

Could you please advise is there any way to use ENABLE=BROKEN option with ezconnect? Usualy this option provided in tnsnames, but in case of ezconnect, tnsnames will not be used and option will not be ...
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0answers
127 views

Django + Apache WSGI + pscopg2 + PostgreSQL 9.1 unexpected EOF on client connection

There are two servers I have. One is SQL server, other is Django project server. And sometimes I get too many unexpected EOF on client connection error by postgresql and OperationalError: could not ...
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0answers
17 views

Acceptable time interval before attempting to reset a connection?

I am writing an application for a router which simply connects it to a VPN. If for some reason the connection fails, the application will attempt to acquire a new socket and reset the connection. My ...
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0answers
327 views

VmWare Host connection keeps on breaking

I have installed VMware ESXi 5.1 and configured the static IP. When I try to connect to the host using the vSphere Client it logs in sucessfully. But after that when I try to access any thing I get ...
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39 views

iMac L2TP connection fail

When trying to connect to private business L2TP server, Mac OSx disconnects. Console log ( ip address is masked x.x.x.x ): 9/8/13 9:58:00.734 PM pppd[11473]: L2TP connecting to server 'x.x.x.x' ...
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0answers
145 views

ubuntu create vpn connection

Ubuntu 13.04 Trying to connect to VPN with having IP, username and password. In Windows vpn connection does work. Thanks in advance. /etc/ppp/options.pptp lock noauth nobsdcomp nodeflate persist ...
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0answers
38 views

Apache process 100% with IPV4 TCP 10u

Today i got strange http ussage. All apache processes woks ok but after some time i found few processes stocked at 100% and they are like that long time. After i checked that process id at webmin ...
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0answers
130 views

How configure Apache Virtual hosts to different IPs for outgoing connection?

I have a dedicated server with 4 IPs, Debian 7 amd64, Apache 2.2.22, PHP 5.4.4. I have configured 4 Virtualhosts, so that anyone of them listen only one IP. The problem is that all they using only one ...
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0answers
62 views

FreeBSD drops connection on file upload

Very strange error, first I thought it related to PHP settings or nginx (both have all proper settings up to 1G limits and all timeouts are properly set), but then I checked with Ruby (Sinatra), and ...
0
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0answers
52 views

Windows Machines dropping connection to local linux site

Problem We host a website locally for employees to use to complete their work. We noticed once and a while an employee will lose connection to the local website and can not access the site anymore ...
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0answers
199 views

Ubuntu 12.10: wvdial connection shared through NAT resets and reconnect with every packet request

I'm having this problem: I'm sharing my wvdial modem connection through NAT configuration with these commands: $ sudo iptables -t nat -A POSTROUTING -s 192.168.0.0/24 -o ppp0 -j MASQUERADE $ sudo ...
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0answers
81 views

Is the connection from PHP to a different MySQL server 100% secure?

I tried to find this information but was not able to. How is working the connection from PHP to MySQL server. As the password is sored plain, is it also sent plain to MySQL if it is stored on a ...
0
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0answers
979 views

Nginx, Django, uwsgi upstream prematurely closed connection

I have a django app running on Nginx and uwsgi. The app works fine usually, but I have noticed one thing that is whenever I restart my server and try to work on my app I am getting Nginx 404 error and ...
0
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0answers
104 views

LAN connection to router from virtual machines on bridged network

First off, I know that this question exhibits bad practice, but the problem is being pursued from more an academic POV than practical application. I'm using a number of Virtual machines (Using the ...
0
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0answers
958 views

Unable to SSH into ESXi 4.1 host - “Access Denied”

I am unable to SSH into an existing ESXi server. I have a user which is in the "root" and "users" group and is able to connect via vSphere. However after enabling "Remote support (SSH)", attempting to ...
0
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0answers
953 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
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0answers
3k 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
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0answers
288 views

How to send connection type (SSH|Telnet) info in Radius Access Requests on Cisco router?

I've configured the following on a cisco router: aaa authentication login default group radius local ! radius-server host x.x.x.x auth-port 1012 acct-port 1013 radius-server host y.y.y.y auth-port ...
0
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0answers
145 views

PHP MySQL script - sometimes it works well, sometimes the connection resets

I have a PHP script that queries a MySQL table and exports to .csv. Pretty basic stuff. About 1000 row table. The problem I'm having is that sometimes it will work instantly (download the .csv), ...
0
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0answers
100 views

Apache refuses connection after server upgrade on a particular domain

This is a very strange problem. We recently upgraded our cloud service. Our host migrated our entire VM with all settings and files unchanged. I updated the IP address at our named provider and ...
0
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0answers
38 views

Troubleshooting poor connectivity to one server but not to another

We have 2 servers that I use to store files on. I have excellent connectivity to one of them, but terrible connectivity to the other. For example, if I attempt to open a decent size (~4.5MB) excel ...
0
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0answers
50 views

connection monitoring application

Could you advise me some tool that allows to see traffic speed per connection? I have found currports tool, it's nice, but it doesn't show speed. Also I use Outpost Firewall for this purpose, but it ...
0
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0answers
256 views

Can't connect to PostgreSQL with PHP in Fedora

My PostgreSQL is running properly and I can access it via terminal. phpinfo() gives following information regarding the installation: pdo_pgsql PDO Driver for PostgreSQL enabled PostgreSQL(libpq) ...
0
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0answers
377 views

VPN Connection Mystery

I am having a strange issue occur in the office: A client has setup a VPN connection for some of our employees to connect to their network. I am able to setup and connect to the VPN on all of the ...
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0answers
463 views

Solaris FTP server refuses connection saying 420 Maximum Login Reached

I am trying to ftp to a solaris 10 server. The connection is getting refused saying 420 Maximum Login limit reached. But I am sure no other connection is made to that server. I tried restarting the ...
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0answers
223 views

Could not connect with Instance of SQL SERVER from LIVE server to server in office

Scenario: LIVE Server: 210.210.210.210 External IP of Office: 111.111.111.111 SQL server on a server machine in office, machine name: MyMachine Another SQL server on another server machine in ...
0
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0answers
629 views

Sharing folder in a Virtual Private Windows Server 2008 R2?

See Edit 2: Hello all, seems my involvement with computers has grown and I've found my self in the need to access a shared folder on a server. I've read some documentation and managed to set up the ...
0
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0answers
319 views

GPO (printers connection VBScript) don't apply on clients

I have a bunch of log on scripts which have to be applied at session log on. Some of them are correctly applied, but I have one for printers connection, which don't work every time. At first time ...
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0answers
11 views

Puma HTTP server stats

I use puma.io HTTP server and I use server events (SSE, EventSource) for live updates. How can I display: the number of opened HTTP connections the number of SSE connections the number of puma ...