A connection generally refers to a TCP/IP connection, that is established as the result of the handshake between 2 hosts.
2
votes
1answer
63 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 ...
2
votes
1answer
2k views
PPTP connection fails with errors 800/806
I've got a client (Server 2008 R2) that won't connect to our production environment PPTP VPN server (Server 2003, running RRAS).
The server is behind a firewall that has TCP1723 open as well as GRE. ...
2
votes
1answer
1k 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 ...
2
votes
1answer
194 views
Is there any restriction of new incoming/outgoing TCP connections/seconds in Windows?
Is there any restriction of number of new incoming/outgoing TCP connections/seconds in Windows? If so, are there any differences between Windows versions?
1
vote
1answer
356 views
Apache Server status, is this a bad sign?
I've been monitoring my Apache Status lately, and a lot of my users are saying how slow the site is to respond. Here is the Apache Status:
Current Time: Tuesday, 21-Jun-2011 20:58:45 EDT
Restart ...
1
vote
1answer
154 views
remote connection to SQL Server 2008 R2 failed from another country?
I am getting this error message when I try to connect SQL Server 2008 R2 Server Instance
Conditions :
On the server side : Sql Server Network Configuration : TCP/IP enabled
Sql ...
1
vote
1answer
111 views
secure L2 connection
Due to some rapid changes I need to also provide vlan(s) in a new location. The topology looks like this:
(main location, vlans:id=6(workstations),id=8(phones))
|
my_switch01
\
\
...
1
vote
1answer
186 views
Ubuntu networking issue: two specific machines cannot browse web while connected to network at the same time
I have setup a secure wireless network which works very well except for two laptops running Ubuntu 10.10 that can't access the Internet via a browser at the same time. They can both ping sites, wget ...
1
vote
1answer
378 views
Can ping, can establish SSH connection in one way but not on other way
First of all, sorry about my english.
We're facing a very strange problem with SSH connection between two specific servers.
Let's say we have X1, X2 and Y servers.
Where X1 and X2 are behind the ...
2
votes
0answers
72 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 ...
1
vote
0answers
25 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 ...
1
vote
0answers
45 views
TCP 443 Connection goes into server but never reaches Apache2 (Passenger)
We have some weird problems, when external servers try to connect to our Website on Port 443(TCP) which is an Apache2+Passenger and a Rails Application.
The problem only happens rarely. I started to ...
1
vote
0answers
118 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 ...
1
vote
0answers
97 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 ...
1
vote
0answers
332 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
47 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
vote
0answers
72 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 ; ...
1
vote
0answers
352 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 ...
1
vote
0answers
1k views
Connecting Oracle XE DB / Oracle Database 10g Express
I started with Oracle DB. On Windows Server 2003 I installed Oracle Database 10g Express Edition and then I also installed PL SQL Developer.
I tried log on via PL SQL Developer to XE database.
I use ...
1
vote
0answers
308 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 ...
1
vote
0answers
385 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 " ...
1
vote
0answers
3k views
Problems with SQL Server 2008 - “The client was unable to reuse a session with SPID 62, which had …”
I'm having problems with my SQL Server 2008 installation (10.0.2531.0 - SP1 installed). It works as a database server for small hosting environment (about 500 sites).
I'm getting errors like this:
...
0
votes
0answers
28 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
votes
0answers
36 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 ...
0
votes
0answers
92 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 ...
0
votes
0answers
40 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
votes
0answers
270 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
votes
0answers
71 views
SSH Connection fails after Auth at channel 0: open confirm rwindow 0 rmax 32768
Here we meet again, mysterious SSH connection error.
This time it only affects SLES system when connection from a regular Debian Wheezy via SSH. Also Putty.
ping works, SSH connection in verbose mode ...
0
votes
0answers
59 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
votes
0answers
73 views
Apache keep the “Sending Reply” status to request even if the connection is closed
I'm configuring an Apache 2 server with the xsendfile mod to serve video files in a optimized way.
My OS is Debian 6 stable and im using mod_status with ExtendedStatus On.
Right now I'm having a ...
0
votes
0answers
302 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
votes
0answers
78 views
Can't Connect to mongodb from application after changing IP of Ubuntu Server
Am facing a rather weird situation on an ubuntu server 12.04LTS machine. I have a mongodb installed and deployed a j2ee application on tomcat to connect to it. there was a need to change the IP of the ...
0
votes
0answers
37 views
Server not accepting uploads
I'm having a strange problem with my VPS: I can download files from it, I can use PuTTy to connect to it and all behaves normally. But sometimes, when I try to upload a file to the server or save a ...
0
votes
0answers
67 views
HTTP stream disconnect and the bewildering fix, why?
We have two geographically different data centers. Each data center has access to
the twitter firehose (via different HTTP credentials).
After Oct 29 (I guess Sandy ?? we are in the east coast) ...
0
votes
0answers
37 views
share internet which is accessed through proxy itself
My server is Windows Server 2008 r2 x64 and I have 4 clients all running Windows XP sp2 x86;
My server has 2 NICs, one connected to my internal network (4 clients) and the other one provides internet ...
0
votes
0answers
138 views
IIS7.5: persistent connection timeout duration
I want to set the period of time IIS7.5 allows a connection to be open before it closes it.
I can't find the setting anywhere.
When I telnet into the server on port 80, the connection stays open for ...
0
votes
0answers
1k 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
0answers
123 views
csf how does connection tracking work and what is a safe limit?
I'm managing a server with a csf and valid users keep getting blocked. I'm not familiar with the csf system and I do not understand how some users are getting connections counts in excess of 300 as ...
0
votes
0answers
225 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
votes
0answers
113 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
votes
0answers
87 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
votes
0answers
108 views
Java: Accessing online database
I made a Java program which accesses a database. During the development phase I used a local database (XAMPP with MySQL), but when I tried to access 2 different online databases (a commercial and a ...
0
votes
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
votes
0answers
43 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
votes
0answers
212 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
votes
0answers
270 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 ...
0
votes
0answers
358 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 ...
0
votes
0answers
203 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
votes
0answers
567 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
votes
0answers
294 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 ...
