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

learn more… | top users | synonyms

0
votes
0answers
9 views

How to set up a “dial in” connection to a Windows 7 computer to create a local area network [duplicate]

I have a Windows 7 computer that will be offline except for a modem connection. I need to set up a "dial in" connection to an remote unattended Windows 7 computer via telephone modem to be able to ...
0
votes
0answers
28 views

Can access server via SSH/FTP but other protocols won't work

I followed this guide to setup an "Upside-Down Ternet." Everything was fine up until the part where I configured IPTABLES then I lost SSH connection. Now I expected that because I'm messing with ...
0
votes
0answers
8 views

telnet “connection closed by foreign host” for some servers, not all

I started having issues connecting to our mail server on 1 server, but the others are able to connect without issue. telnet my.smtp.server 25 Trying 1.2.3.4... Connected to my.smtp.server. Escape ...
0
votes
0answers
28 views

Jenkins best practices for inter region connectivity in AWS [on hold]

One of the new requirement that I have is trying to use my Jenkins server which is set up in my AWS us-east account to deploy code to the application servers(in a private subnet) in the AWS china ...
0
votes
0answers
29 views

Connecting to a MariaDB server with master-master replication setup hangs randomly

I have a two server MariaDB master-master setup as documented on the DigitalOcean community page: https://www.digitalocean.com/community/tutorials/how-to-set-up-mysql-master-master-replication. The ...
1
vote
2answers
2k views

No Ping/Telnet connection between VM

I am new in Azure and have one problem which I can not solve. I tried asking on StackOverflow, but - quoting - "You will have better luck asking on ServerFault". I want several Virtual Machines to ...
1
vote
1answer
8k 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
10 views

Force an application to use a specific connection [migrated]

So my Mint 17 has 2 connections (wired and wireless) when both connected by default the wired is used, what I want to do is keep wireless for file download and general Internet usage, and use the ...
0
votes
1answer
14 views

Cannot login to ssh - stdin: is not a tty

FIXED If you have seen this in the login screen of your server... stdin: is not a tty ...you know the trouble. Well. I've had the exact same problem on my root server. I tried several things to ...
0
votes
1answer
43 views

Samba connection reset on Windows 7 (System error 5)

I am having problems setting up a Samba server, or to be more exact the problem is that i have set up the server, but it sometimes stops working for several hours and then starts again. It is always ...
5
votes
2answers
3k views

Siege: descriptor table full sock.c:119: Too many open files

I am trying to make a stress test in my own server using siege with the following command: $ siege -c 500 myweb.com/somefile.php But I get this error: [error] descriptor table full sock.c:119: Too ...
0
votes
0answers
7 views

Windows/IIS7.5 half-closing connections resulting in sockets in TIME_WAIT

I'm seeing scenarios where the client side initiates the TCP close but the webserver (IIS 7.5) simply responds with an ACK and the connection ends up in TIME_WAIT. Why would it do that? Typical HTTP ...
0
votes
0answers
152 views

ProFTPD disconnect device

we are running a ProFTPd Version 1.34 on Debian Linux 7 Server. We have no problems to reach the FTP Server via Filezilla or even via Browser on mobile phones. But we have about 80 devices, that have ...
2
votes
2answers
1k 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 ...
4
votes
1answer
9k 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. ...
0
votes
0answers
43 views

One-way connectivity on DC

I have a Windows Server 2012 R2 server as a domain controller and DNS server for the AD-integrated domain. Using the server's IP, the server can be pinged, the default IIS website can be accessed, ...
0
votes
0answers
18 views

Google Cloud Messaging - server side - connection 502 error

i have problem with connection from my application server to GCM : gcm.googleapis.com:5235 Exception: XMPPError connecting to gcm.googleapis.com:5235.; : remote-server-error(502) I have exact same ...
0
votes
1answer
1k views

Weblogic JDBC connection pool keeps in suspended state when DB is back to normal

We have a JDBC connection pool on a weblogic 12c. When the backend database goes to offline, the pool goes into suspended state, and when the db is back online after a short period of time (say 5 ...
0
votes
1answer
31 views

Apache Empty response Diognosis

My server gives empty response randomly. This is about four weeks that I cant figure out what is the problem. I will try my best to give you extensive information about my problem. sever specs: ...
0
votes
1answer
41 views

Running nginx on AWS is sending back 'ERR_CONNECTION_TIMED_OUT' responses

I have installed nginx on an Ubuntu AWS (EC2) node and confirmed it is running via ps -aef | grep nginx. In the server section I have: server { listen 8080; server_name ...
1
vote
1answer
37 views

Iptables: Difference between RELATED and ESTABLISHED state?

I've tried reading many articles on the internet but none of them are quite clear. I also know similar question has been posted here before but none of them explain my situation. Earlier I ended up ...
0
votes
0answers
36 views

Ubuntu 14.04 SSH from Third Party, No Error Cause

I have two instances of Ubuntu 14.04 running. I am utilizing a third party service that accesses the instance(s) via ssh using its own generated key pair, of which it provides me the public key. I ...
0
votes
0answers
7 views

Can't connect to the IBM bladcenter switch

I got IBM 8677 bladecenter with hs21 type 8853 & 7995 I connect the Ethernet SM I\O module , configed it in the IMM to same subnet as my host. I dont know why , but I cant telnet it or ping it . ...
0
votes
2answers
40 views

IPv6 DNS Connectivity through IPv6

My clients are using IPv4 in the USA. Their ISP is not ready for IPv6 yet. My public web server is on only IPv6. It is registered with a DNS Provider(GoDaddy) that is IPv4 and IPv6 enabled. Can my ...
0
votes
0answers
26 views

nginx access log and $connection variable

!Hi, guys! I've added $connection variable to output of nginx access log and everything seemed working fine. But i've noticed that sometimes different client IP's assigned to the same connection. Up ...
0
votes
0answers
22 views

MONGO - mongod - no connection to database [duplicate]

i have an testserver running under ubuntu 14.04 with public ip address. On this i have plesk 12.5 and mongodb 3.2. For administration of mongo i installed phpmongodb. Then created an database, an ...
-1
votes
1answer
38 views

SSH RDP Tunnel and Port Connection

Tried doing some research but can't really figure out the solution (or how to troubleshoot further) for this problem. Objective and Reasoning for setting this up: SSH Tunnel RDP from work to home ...
2
votes
1answer
9k views

Specific FTP connections not able to upload files

I have installed vsftpd in a server. A new ftp group was added and a user was created and added to that group. I've tested 3 different scenarios, only 1 of them is working properly and the other 2 ...
0
votes
1answer
46 views

Increase Connection Timeout for “ssh: connect to host xxxxx port 22: Connection timed out”

I need to perform a sort of scan over 20k+ machines in the network (all linux), and I am using ssh to connect to each machine, run a small command on it, and gather the output. I am running parallel ...
0
votes
0answers
20 views

Does nginx consider a page request as one request or more (including static files)?

Lets say we have a configuration as below: http { limit_conn_zone $binary_remote_addr zone=conn_limit1:12m; limit_conn_zone $server_name zone=conn_limit2:24m; [...] server ...
1
vote
2answers
489 views

better alternative for tcp_syncookies in linux

In an effort to prevent DDOS attacks I followed suggestions to leave /proc/sys/net/ipv4/tcp_syncookies value set to 1 in my linux box to enable TCP syncookies. However, when I look at this URL: ...
0
votes
2answers
2k views

Connection Refused When Trying To Connect To IRCd-Hybrid

I have a Rackspace server running Ubuntu Lucid Lynx, where I have installed an IRCd-Hybrid. I can connect to the IRC server using irssi that was installed on the same machine where the server is, but ...
1
vote
1answer
68 views

Nginx Stress Test with httperf - Large Data Transfer Differences from Apache Server

I'm running a simple httperf stress test on a quad-core Nginx server, pointed at an HTML/PHP document. Large connection rates quickly begin experiencing high connection and response times (see the ...
0
votes
2answers
273 views

Backup NAS to another NAS?

is there a way to backup / transfer a NAS (it's like a big harddrive with some access to a webinterface, but closed linux etc.... only two ethernet ports) to another one? or is the only way to connect ...
1
vote
2answers
3k views

wget ftp connection failing after PASV command

In attempting to transfer all files from one web server ("source") to another ("destination"), the wget command is connecting via FTP, but cannnot proceed beyond the PASV command. I'm using an SSH ...
-3
votes
1answer
43 views

What is the difference criterion between max_clients and max_conns? [closed]

I'm new to server administration; What are the main \ Criterial differences between max_connections and max_clients a server can handle? It can be sound very similar,
8
votes
6answers
64k 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 ...
1
vote
1answer
104 views

How to stop tinyproxy from using “Proxy-Connection” header

I just setup tinyproxy for the first time, and I'm trying to make it mimic a normal connection as closely as possible. I already disabled the Via header, but I'm not sure how to change the ...
0
votes
0answers
148 views

Apache times out unexpectedly ( despite setting Timeout in httpd.conf )

I've a PHP script (on centos, apache 2.2, php 5.4 & apache-mod-php5) that its execution takes about 2 minutes, but 1 minute after sending request, my connection to apache server times out and ...
0
votes
1answer
34 views

How to change MySQL user permission temporarily (Per Connection)

I do not know if it is possible at all or not. What I want is that, when a certain connection is established, the user not be able to modify data with that connection. This is the scenario: ...
-1
votes
3answers
1k views

Connecting VoIP Phones to a Laptop

I'm trying to connect two VoIP phones to a laptop using the internal ethernet adapter and a usb-to-ethernet adapter. My configurations are as follows: Laptop eth0 - 121.1.2.1/24 Gateway - 121.1.2.4 ...
0
votes
1answer
82 views

Increment CouchDB concurrent connections

I'm using CouchDB to serve thousands of requests per second. When under heavy load, it seems to respond slowly so I began to ran tests with apache bench. Couch can respond 50k requests, 1k concurrent. ...
0
votes
0answers
453 views

Rails app with nginx passenger: recv() failed (104: Connection reset by peer) while sending to client

Update. June 8 It's most definitely client-side. Something about JQuery/Ajax/Facebox doesn't sit well with IE10/11. Unfortunately updating all the components for JS related things to be more ...
0
votes
2answers
46 views

Using a specific network adapter for a service

On a Synology NAS this is called: Service-interface binding Is there something to specify the network adapter used by a certain service? I don't wan't all applications running on that adapter. I only ...
2
votes
0answers
68 views

Website inaccessible until host is pinged from client (on a class A subnet)

There is this really weird issue on the internal network, this happens constantly to "random" machines. Machine (client) boots up, goes to ...
0
votes
0answers
94 views

SQL Server 2008 R2 eventually sends RST instead of FIN/ACK

My SQL Server 2008 R2, running on Windows Server 2012 R2 unexpectedly sends connection resets (RST packets) to its clients performing series of small queries. The problem is, it eventually happens. ...
0
votes
0answers
10 views

debug connection to other server

My server suddently is unable to connect to other servers through Curl, file_get_contents etc. This issue is reported for at least 5 different server Ips. Whereas it still works with many others. ...
4
votes
1answer
1k views

Why are connections in FIN_WAIT2 state not closed by the Linux kernel?

I have an issue in a long-lived process called kube-proxy being part of Kubernetes. The problem is that from time to time a connection is left in FIN_WAIT2 state. $ sudo netstat -tpn | grep ...
3
votes
1answer
130 views

ssh on Ubuntu fails after first time : Asymmetric routes, SSH connection fails to properly establish

I have been baffled by this problem... I have an exs host on subnet 10.128.0.1 and guests on 10.128.20.1 subnet. I have another box on 10.128.0.1 subnet with vms on 10.129.18.1 ... Router is simple ...
0
votes
1answer
69 views

Connect remotely to Database by SoftEther VPN Client

As i have just started studying about Softether VPN, i have some questions : I want to work at home, and I installed SoftEther Server at my company, and SoftEther Client at home, I successfully ...