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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22 views

LDAP build script failing on openLDAP-2.4.31 ( ldapmodify -Y EXTERNAL -H ldapi:/// )

I want to set the password to the backend admin so that I can change the LDAP ACL to what I need... needless to say I don't want my config posted all over the place, plus the .ldif files are correct. ...
1
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2answers
35 views

Transparent switch from Wifi to ethernet

I have the following network setup: Zyxel USG 200 Firewall which also acts as DHCP server 2 Switches 2 Wifi APs (Zyxel NWA3560-N and WAC6503D-S) with NAT and DHCP disabled The clients (mostly ...
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1answer
46 views

NIC seems slow, even on 100Mb/s full duplex [closed]

So I have a server running Centos 6 64bit with cPanel. It's set on eth0 running at 100MB/s full duplex. But, one particular server seems sluggish on its connectivity, despite server load being minimal ...
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1answer
119 views

How can I build connections among four OSs, especially between two Ubuntus? [closed]

More background information: Two Ubuntu 14.x systems both hosted in Windows using VMware Workstation 10: Ubuntu server in Windows 7 and Ubuntu guest in Windows 8.1. Public IP is limited, so using ...
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4answers
89 views

How to access a machine with a wrong network address?

I have a Windows Active Directory network in a LAN of addresses 192.168.10.0/24. I have another site that has addresses of 192.168.11.0/24, where all AD servers are in the 192.168.10.0/24 site (I ...
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4answers
54 views

is it safe to change the RDP port?

My web server is in the U.S. and it is accessed from my home in Canada using Remote Desktop Connection, standard port. Unauthorized persons have tried to log in from many different countries, some ...
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1answer
14 views

How to troubleshoot connection error from windows to unix?

Sidenote: I am still trying to fix this issue. I have a ubuntu server running bind on 192.168.0.2, listening to :53 # netstat -tulpn //output shortened tcp 0 0 192.168.0.2:53 0.0.0.0:* LISTEN ...
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0answers
102 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
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0answers
64 views

Banned from SSH Centos server but can't find where

For some reason my ip address is banned from using ssh or sftp. I have no problem connecting to the server using an other ip nor i have problems reaching all other services (like http, teamspeak) with ...
0
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1answer
90 views

Too Many HTTP Requests from one source

We are having an issue at one of our customer sites where Tripwire is flagging events when more than 1000 HTTP connections are being individually created from different IP addresses within a span of ...
0
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1answer
43 views

MySql Clients connection timeout randomly

I have 100 PC clients connecting to MySQL over LAN. They're running INSERT querys with no particular period.Statistically, at the same time no more than 10 PCs are trying to run INSERT query. This is ...
0
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1answer
219 views

Zabbix Cannot Get Value From Agent [closed]

I am attempting to connect Zabbix to a host and am getting the error: Get value from agent failed: cannot connect to [[xxx.xxx.xxx.xxx]:10050]: [4] Interrupted system call I am not sure why this ...
1
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0answers
40 views

What happens if a machine gets a SYN/ACK packet without sending initial SYN packet?

I'm thinking of a situation where an attacker manipulates a SYN packet that was sent from A's source IP address to B. The server will receive the packet and think it's a legitimate packet, and send a ...
0
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1answer
20 views

Concurrent connections per IP

I need to make a few changes to a firewall configuration, but before I do I'd like to see the number of concurrent Apache connections per IP. This command produces a nice list: #netstat -ntu | awk ...
-1
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1answer
33 views

IPv6 connections from outside the LAN are timing out; what is blocking the connection?

as I understand with ipv6 there is no NAT so every client on a network will get a different public ip address (so there is no need for port forwarding). so I checked on my network and indeed every ...
53
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5answers
7k views

I accidentaly forbid SSH connection to a remote server… What's next?

Let's say it again, we all make mistakes, and I have just made one. A brief history: I was doing some stuff on a VPS (Debian) I'm renting, when I noticed some strange behaviour. Using the netstat ...
0
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3answers
326 views

Can't connect computer to domain [closed]

I can not connect a computer to Server 2012 R2. the error message I receive is Note: This information is intended for a network administrator. If you are not your network's administrator, notify the ...
1
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1answer
109 views

Ipvsadm to monitor connections on a load balancer

I am working on to set up Haproxy on a load balancer with two backend web servers in the first period. The problem I am facing is to monitor number of connections to each of my web servers. I have ...
0
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1answer
67 views

MySQL Bad Handshake to MySQL Cluster behind Proxy

I have just set up a MySQL cluster using five hyperV linux boxes (2x management nodes, 2 data nodes and 1 proxy) having followed (with a bit of tweaking) the instructions here. Everything works fine ...
0
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2answers
85 views

Website is down but only for me

I have a website that is working fine for everyone but throws an error whenever I try and access it. The web developer is saying it is a problem with my network. What should I check to confirm this? ...
0
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4answers
326 views

telnet cannot connect to port without firewall

If I try to connect to MySQL with telnet myhost.com 3306 I get a network not reachable error, even when I flush all iptables rules. I can reach other ports like ssh (with the same iptables rules ...
1
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1answer
545 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 ...
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0answers
57 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 ...
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2answers
63 views

How to avoid 'too many connection' error in MySQL

It often happens that when trying to load the data from the database i`m getting an exception 'To many connection'. I do not know the internal features of the database work, so i do not understand ...
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0answers
6 views

Couldn't connect to MySQL remotly without skip-grant-tables option [duplicate]

I trying to connect to MySQL remotely over a Win Server 2012 EC2 instance, to do so I'd: Enabled inbound traffic to MySQL port 3306 in the EC2 Security Group; Disabled Windows Firewall service. ...
1
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1answer
35 views

How to check the bandwith that is used by each connection on Apache?

I am trying to get stats on how much of a bandwidth each connection uses on Apache? I have Apache 2.4 installed on Windows Server 2008 R2. I would like to know how many users more I can add on my ...
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1answer
42 views

Logging client connection errors/closed connections with apache

Is there a way to log/record apache connections which are prematurely cut off by the client (either deliberately, or due to a connection error)? Short story is this: I'm working on ...
0
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1answer
41 views

maximum number of clients connected to the web service [duplicate]

How can I find the maximum number of clients that can connect to my web service at the same time? Is there any way to know how many clients can connect to the web service at the same time? What is ...
1
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0answers
47 views

Weird proxy behaviour

I recently installed a computer in a network that is behind a proxy, I configured a reverse ssh tunnel to connect to it, and tunneled the ssh connection with corkscrew to connect to a server, this ...
3
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1answer
98 views

SBS 2011: can't open web-based Sharepoint Designer

We installed SBS 2011 (Sharepoint 2010) a couple of years ago and it's running fine. We never used Sharepoint features. Now we wanted to explore Workflow features so I went to http://sites and logged ...
0
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1answer
64 views

closing ssh tunnel when using connection sharing without killing ssh?

I typically use ssh with connection sharing enabled; this causes any ssh tunnels I create subsequent to the initial ssh login to use that connection. Is it possible to close an ssh tunnel without ...
0
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1answer
285 views

Nodejs: server doesn't close TCP connections

Facing a problem in the production server running debian (7.0) with nodejs (v0.10.x) cluster where it doesn't close some TCP connections to the clients. This leads to connection drops when connection ...
0
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1answer
338 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 ...
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1answer
234 views

device vs interface vs connection under linux with nmcli [closed]

What are dependencies and relations between device, interface and connection in nmcli cmdline utility under linux? The below questions are asked in context of nmcli and networking in linux: Which ...
0
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1answer
90 views

How to Access Server After Cisco AnyConnect Connected?

I have bought a VPS with Windows Server 2003 and Valid Public IP a.b.c.d In this Server I have to Connect to Another Private Network with Cisco Any Connect also I have to RUN a CCProxy (http proxy ...
1
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1answer
1k views

iis app pool set credentials not working for specific network account

I am trying to set app pool credentials for a speccific domain account for an ASP.net MVC project on iis 7.5 on a Windows 7 enterprise server. I am using .Net version 4 and I believe this is set ...
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0answers
504 views

mod_jk losing connection with tomcat

I'm running an Apache tomcat + mod_jk 1.2.40 behind an apache web server. Everything has been setup and works properly for some amount of time since a tomcat startup (measurable in days/weeks); then ...
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votes
1answer
114 views

Idrac 6 internet settings enabled to connect to internet via ssh [closed]

I just installed the idrac 6 enterprise into dell r410. I insert the cable on it. But there is no connection. Green light on !! Normally when i restart the server and when I use the normal connection ...
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1answer
114 views

Is ARP Connection oriented or connectionless?

Is ARP Connection oriented or connectionless? It uses TCP, but does that consider it connection oriented?
0
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1answer
253 views

Named failed due to permissions and connect fail error [closed]

I'm facing a serious problem which has knocked out my server. For some unknown reason, named is no longer working, despite doing my best to remediation the issues found on the logs. I get this error ...
3
votes
0answers
334 views

TCP connection stuck in SYN_RECV state despite ACK received

My client and server are both internal machines. tcpdump on both client and server show all three parts of handshake are communicated, however netstat on server shows SYN_RECV, and on client shows ...
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0answers
147 views

Amazon AWS connection issues

I have a strange issue with my Amazon EC2 instance. I have created the following: m3.medium instance hosted in the Amazon cloud This instance runs the following a. Apache Tomcat application server ...
1
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1answer
140 views

windows 8 taking long time to open Mac server share [closed]

I have a machine running windows 8 on a Mac server environment. When mounting or accessing a small/empty shared folder on the network the computer connects fine. When accessing another shared folder ...
-4
votes
1answer
62 views

Can I use an external IP to make 2 internal IP's establish a TCP/UDP connection? [closed]

As I understood, in order to make a connection to an internal IP (behind NAT), the computer behind the internal IP have to send the request first before the other side will be able to answer it, So if ...
0
votes
1answer
54 views

Task Manager shows more worker processes than the max set [closed]

I am doing application pooling for a web application used by huge number of users and set web garden with a max of 20 worker processes. But in task manager, I see more processes than the w3wp ...
1
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2answers
477 views

Test port reachability from a remote host even though the port is not bound to a service?

I need to check whether a remote host is able to reach a specific port. At the time of test the service bound to that port will be down. The possible issues that the test would address would be : ...
-3
votes
1answer
33 views

I have a IP address with some open services. How could I contact the owner? [closed]

After having serious problems (DNS incident) I found out an IP address of a machine. Is it in any way possible to contact the owner without knowing anything else like email, domain name or website? I ...
0
votes
0answers
71 views

Cannot connect to TCP service from remote host

I have two servers running RHEL 5.8. SRV1 (10.58.192.36) has a service running on port 9002 and I need to connect to this service from SRV2 (10.58.192.42). [root@SRV1 ~]# netstat -anp | grep 9002 tcp ...
0
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0answers
94 views

Connectivity issues (slow response) to a remote VM via SSH

I am on a linux machine trying to Ssh into a remote Centos 6.4 server via VPN. The server often gets disconnected and response too is slow. I see the messages on the terminal once in a while: ...
0
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1answer
122 views

Mysterious Upstream Client ::ffff:81.70.140.65…changes on each error

I read the following post: nginx errors recv failed 104 ...but have a different question... I'm curious to know why there is ANY reference to this mysterious upstream source: ::ffff:81.70.140.65 ...