A connection generally refers to a TCP/IP connection, that is established as the result of the handshake between 2 hosts.
0
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0answers
3 views
Why do bittorrent clients connect to seeds when they are themselves seeding [migrated]
I noticed that when I'm seeding a torrent (using Transmission, the default client under Ubuntu), it regularly connects to other seeds, to which, obviously, I won't send any data.
People I know have ...
0
votes
1answer
32 views
Why can't we contact a specific address range from inside our LAN?
We can't connect to a specific external server from inside our LAN.
However we can connect to the same server from outside our LAN, at home, or using a mobile phone. It was working just fine for ...
-1
votes
1answer
47 views
Router blocking access to our new server? [closed]
Something weird is going on with my router (an Asus RT-AC66U that I'm connect to via wifi) or our new server (with Liquidweb).
We just got that server a few days ago, and until today I haven't ...
-1
votes
0answers
22 views
Extract data information from proxy squid log [closed]
I need to extract data information from proxy squid logs.
I've check out some online scripts to extract data from squid, but first I would like to check with some of your experience if this ...
0
votes
0answers
26 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 ...
1
vote
2answers
46 views
TCP vs UDP Error-Checking
I've bounced upon two articles that describe in-depth on how TCP and UDP connections work. However there is some kind of inconsistency. Where one article tells me that UDP does no Error-Checking at ...
0
votes
1answer
19 views
Browser prematurely closes connection
I am working on a legacy system where an intermittent problem keeps happening at what seems to be times where there is a lot of load on the network. I am using IE6 to access a webpage generated by a ...
1
vote
0answers
24 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 ...
0
votes
1answer
34 views
Can't establish connection between my VPS and itself
I have a VPS with two IP addresses: 74.117.158.92 and 74.117.159.204. If you ping them, you'll find they are both responding. I can also ping google.com etc. from either of them.
But I cannot ping ...
0
votes
2answers
55 views
Will I get banned or blocked for running a diagnostic app?
This may seem like a simple question. Hopefully it will have a simple answer.
I run an internet radio station. There are 3 machines.
Music source client
Stage server
Master server (relays the ...
3
votes
1answer
39 views
What is a good way to determine a server's connection usage?
Trying to figure out where my system's connections are being used (i.e. how many connections belong to what processes - could even be filtered by some expression through grep, if it applies). The ...
1
vote
0answers
44 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 ...
0
votes
0answers
35 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
1answer
55 views
Amazon EC2 unable to connect to instance
I had to change keypair on my instance. I have created an EBS AMI image of the original instance and created a new one with the image. I can ping the instance but ssh connection is refused.
One ...
0
votes
0answers
85 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 ...
2
votes
1answer
122 views
How do I find out which pairs of a CAT5e cable are actually connected to another machine?
Using Linux (Debian, to be specific) on a laptop, I want to be able to check whether, for example, the TX or RX pairs are both connected to another machine. If, say, I've only connected RX (and am ...
0
votes
2answers
190 views
How Connect to Cisco router for the First Time
I recently purchased a new Cisco 881W and I am trying to connect to setup the initial configuration. The last time I did this about three years ago I connected over a serial link to the console port, ...
0
votes
2answers
55 views
I can't ping my server from certain IP
I have 2 internet connections from 2 different ISPs with static IPs, lets call them A and B. A connects to the server in several ways (ping, SSH, HTTP), while B cannot do anything (ping, SSH, HTTP).
...
1
vote
4answers
186 views
ssh tunnel refusing connections with “channel 2: open failed”
All of a sudden (read: without changing any parameters) my netbsd virtualmachine started acting oddly. The symptoms concern ssh tunneling.
From my laptop I launch:
$ ssh -L 7000:localhost:7000 ...
0
votes
1answer
102 views
Do AWS ELB, HAProxy or nginx drop the connection if a backend servers is down?
I wonder which ones of the following load balancers is able to detect an unavailable backend machine, and redirect the connection to another server without dropping the request:
nginx
AWS Elastic ...
0
votes
2answers
45 views
Connection refused after apache update
After I updated my apache, none of my virtual hosts are accessible anymore, the server responds "Connection refused". No errors are in the logs and I have no idea what is causing this. My virtual host ...
0
votes
1answer
133 views
Able to connect by SSH, but not x2go
I am having trouble connecting to a remote server with X2GO using a DSA key. Connecting works fine over SSH, but when I try to connect with X2GO, it goes immediately to the username/password box and ...
0
votes
0answers
264 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 ...
-2
votes
2answers
72 views
How to test a LAN port for failure? [closed]
Been having major network issues for over a year now. I keep getting dropped network connectivity on a computer on the network. Its running XP and the LAN port is directly on the motherboard. I ...
0
votes
0answers
70 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 ...
1
vote
1answer
64 views
Web ERP slow response when somebody upload files in an ADSL connected office
We have developed, and deployed, a web ERP for various small companies (less 30 users each one). Those who have cable connection don't experience any problems related with slow connections, but one is ...
0
votes
1answer
160 views
Why my scp is working one side only? “Lost connection” SCP transfer
I'm trying to transfer a file via ssh but it works only from PC1 to PC2 but it doesn't work backwards.
I've checked my ssh_config files and both are the same. Which is basic:
Host *
SendEnv LANG ...
0
votes
1answer
34 views
Can't access VPS through Firefox to finish WordPress Install
I know, I know! I shouldn't be able to straight out of the box, but I'm running a VPS with CentOS and Apache. My control panel is Kloxo, which I have no problem with.
I can access my VPS through SSH ...
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 ...
-2
votes
1answer
38 views
Connection speed required for webhosting server [closed]
I'm interested how to calculate required speed for and connection that will be used for webhosting server?
e.g. I have a server with around 300 websites ( they do not have large traffic on them).
...
0
votes
3answers
211 views
Cannot connect to mysql database remotely using jdbc
I am trying to connect to my database which is hosted on 000webhost. I am connecting from SmartFoxServer, and they allow database connections. All you have to do is change some of the settings in the ...
0
votes
2answers
99 views
SLES11 random unreachability from a single machine
I'm experiencing a very weird problem and I am lost hard now. I have set up several Suse SLES 11 SP2 machines since my company tries switching to SUSE. And every single machine with SLES 11 has this ...
0
votes
1answer
44 views
Alter new and existing session Command Timeout value
My first post so please me...
I’m a self-taught DBA in a manufacturing environment full of engineers who like to fiddle.
Although I have not given them sysadmin or any explicit extra rights I have an ...
1
vote
0answers
114 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 ...
0
votes
2answers
89 views
How to solve this IP address/connection conflict during server move?
I'm trying to move the content of a Windows 2008 server to a new hardware and encountered the following problem:
The IP should be moved with the server to avoid changing lots of DNS records. ...
0
votes
1answer
273 views
apr_socket_recv: Connection timed out (110)
I have nginx/php-fpm running but I am getting the following:
apr_socket_recv: Connection timed out (110)
This is a massive big box. 16 cores/24GB RAM
What do I need to tune to increase the allowed ...
1
vote
2answers
49 views
Connection refused for a few hours
I use a Linode server, and have had about a half-dozen domains running on it for the past couple years without issue. It's running Ubuntu 10.04 and Apache.
Today, for about 3 hours, all http requests ...
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 ...
1
vote
1answer
379 views
how to solve the error: “ssh_exchange_identification: connection closed by remote host”
I have been researching for hours and still unable to solve my problem.
This error "ssh_exchange_identification: Connection closed by remote host" has many proposed solutions but none seem to solve ...
1
vote
0answers
96 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 ...
0
votes
1answer
88 views
opening firewall 1433 port to IP address that require a direct connection
We are upgrading from sql server 2005 to sql server 2008 and windows server 2008 R2.
New server is behind a firewall, we have 30 or so windows XP machines, that will require the port 1433 to be ...
0
votes
1answer
176 views
OpenSSH Can't Connect on Fedora 17
Having trouble SSH'ing to an internal server that is outside of an enterprise level firewall. I have a fresh install of Fedora 17. Here is the command I'm running:
ssh ...
1
vote
3answers
56 views
What would prevent non-domain devices from connecting to an IIS web server?
Web Server
AD with 2008 Domain Controllers
Windows Server 2003
IIS 6.0
Virtual Directory / ASP.NET 4.0 / MVC 3
Anonymous / Integrated allowed
Device
Motorola MK 3000 Price Checkers
Windows CE ...
2
votes
2answers
92 views
Can not mount NFS from server on local network
I set up my NFS server without doing any bigger changes in configuration files. After that I added these entries to /etc/exports(both paths are valid) on server(192.168.1.11):
/export ...
0
votes
1answer
55 views
Connecting to samba ubuntu server from linux
In these days I'm setting up a small network with about twenty computers. The users of this network used windows before (now they use linux mint) and they need to access samba ubuntu folders simply ...
0
votes
1answer
74 views
SQL Server 2008 intermitent error 40 running parallel queries
Here's our setup :
We are using Red Gate SQL Multi-Script to run queries on our ~1000 databases which reside on a single SQL Server 2008. SQL Multi Script can be configured to run queries in ...
3
votes
1answer
388 views
Windows server closes TCP connection immediately after sending SYN+ACK
After a proper SYN, SYN+ACK and ACK TCP-Handshake, the server immediately sends a FIN+ACK indicating a graceful connection closure. The client's HTTP requests results in RST packets from server. This ...
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 ...
2
votes
1answer
158 views
Wireless Access Point connection benefits over Wireless Routers
While I was doing research on wireless connection limits, I stumbled upon this question. Zypher's answer seems to suggest connection capacity benefits of wireless access points over wireless routers. ...
