Questions tagged [client-server]

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Can I host ONE VM from two servers? [closed]

looked around for a bit and I could not find a definitive answer. My setup is for educational purposes as I am in a CCNA/Cybersecurity program thru my college. Anywho lets get down to it~ PC A is ...
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0 votes
1 answer
43 views

Can't connect Client to other gateway when DNS is set to domain controller

I recently configured an active directory and connected the clients via network connection settings by setting the DNS for the domain controller. But people who want to work in home office can't ...
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0 answers
139 views

Delay in NFS Client file Updation in NFS Server

We have an NFS server and our custom board which is our NFS Client. We are generating a log file as part of our custom application. This log file is getting generated in the root file system of the ...
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30 views

Router configuration for VPN connection

I followed this tutorial to create a VPN remote access from Client to server, I configured the router as shown here but I still have the same problem. Impossible to connect to VPN in LAN or in WAN. ...
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0 votes
1 answer
90 views

Linux - Set-up a client-server network from scratch [closed]

I have been looking for this, but haven't been able to find anything "complete" out there, probably because it's such a standard setup that people think it's included in the human genome by ...
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-3 votes
1 answer
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Is it feasible for a mobile app like a peer to peer torrent app to discover peers via Internet, not just direct Wifi? [closed]

If I create an app that will be installed on different devices (Windows, Android, Apple). Different devices will be connected to Internet via different ISPs. Mostly devices will have changing dynamic ...
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1 vote
1 answer
735 views

Adding registry entry for TLS 1.2 did not work

The client always communicates using TLS 1.0 , On the Client side, I am having Windows Server 2012 R2 ( which as per the documentation it supports TLS 1.2 ) After going through many forums I realized ...
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0 answers
5k views

Client network socket disconnected before secure TLS connection was established

I'm facing an error on running the node script which generates the PayPal invoices using SDK and when it runs from the local server it is working fine but when it runs on production server it is ...
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0 answers
357 views

Connect to Openvpn server through http proxy which has a dynamic ip

My openvpn client will have to pass through a http proxy server before connecting to the openvpn server. But the http proxy is on a dynamic ip. From this tutorial - https://openvpn.net/community-...
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1 vote
1 answer
380 views

Connecting to a web server with 2 way SSL enabled doesn't prompt for certificate in any browser and returns 403.7 error

I've been trying to set up a website with 2 way SSL in IIS 10. It's not going so great. Already have a domain I got through NameCheap, and have DNS through CloudFlare (DNS only, no proxy). The ...
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3 votes
1 answer
767 views

Why was Windows picking the wrong route when attempting to connect to a TCP server?

I had previously asked this on Stack Overflow and was advised to move the question over to Server Fault. So here I am :) The application I am working with connects to a couple of TCP servers running ...
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0 votes
1 answer
887 views

CentOS 7 SMB Client Slows Down Over Time

I have a CentOS 7 VM running on VMware that is used for archiving data from various servers, the destination is a FreeNAS MiniXL. Some of this is done over ssh, but others are sent using SMB. In ...
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1 vote
2 answers
706 views

OpenVPN - client connected to server, but cannot ping server or server's LAN

I am trying to ping the network of the Ubuntu server from Windows 7 (client). Both Ubuntu and Windows are clients on another OpenVPN server with the option client-to-client. The client can connect ...
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  • 135
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1 answer
328 views

TCP protocol strange behaviour in my program

I started working recently in IT field and as first assignment they want me to communicate with a remote board with a simple Socket using Java. Today I completed all the job but I noticed that my ...
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0 votes
0 answers
151 views

Server sends a handshake failure

I am trying to understand why I get a handshake failure during hello client/hello server session. I am using postman to send this request to the server: $ POST https://192.168.10.211/message Both the ...
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  • 111
1 vote
1 answer
79 views

WPA2 Enterprise: no risks for preconfigured clients when it comes to Rogue APs?

We are using, as default, PEAP and MS-CHAPv2 as inner authentication. I was concerned with security risks when it comes to rogue APs but a colleague told me that there are no risks for preconfigured ...
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2 votes
1 answer
809 views

How can I store the output of a Linux command in a Puppet file?

I want to create a new file on a specific Puppet agent and store the output of a Linux command to the file. Is there an easy way to do this with the content attribute? The command I want to run is ...
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0 votes
0 answers
19 views

Incremental image pulling in a scholl with windows

This is hard for me. I am a teacher at a school and I have to manage the PC room and mobile notebook classrooms. I use GNU/Linux privately, so I am basically a beginner in windows network ...
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  • 401
-2 votes
1 answer
52 views

How Call routed in F5 Box from => Client - Virtual Server - Pool - Pool Member and back to client [closed]

How Call routed in F5 Box from => Client - Virtual Server - Pool - Pool Member and back to client. What are the different way of response possible from Pool member back to client like i)...
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  • 101
0 votes
1 answer
5k views

RST packet and server behavior

If a client send one RST packet to a server, how will the server react? Client ----RST----> Server Does the server close the connexion immediatly or does it wait for another packet to be received? ...
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  • 3
-1 votes
1 answer
572 views

rocketchat-server snap running but not responding

What I am trying to do/What have you tried in order to make it happen? I followed installation and configuration of ubuntu 17.10 snap "rocketchat-server" and "rocketchat-client": Now I want to ...
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  • 101
2 votes
1 answer
1k views

Why is rsnapshot with sync_first not working properly?

I had been using rsnapshot successfully for years to backup my Ubuntu notebook computers to my Ubuntu server. I recently decided to switch to using the sync_first option on the server and an anacron ...
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  • 21
2 votes
1 answer
77 views

Is there a way to measure clients connection speed?

Suppose you run a website and you are getting reports from your customers in a particular office that your website has suddenly become very slow. But it's perfectly fast everywhere you test it from, ...
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0 votes
1 answer
535 views

Openvpn setting up new CA.cert, server key on old setup

I mistakenly deleted keys folder with ca.cert, server.key and dh2048.perm. I have multiple clients located various places which are still connecting with server. I want to generate new set of ca.cert,...
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-4 votes
1 answer
746 views

Peer to Peer vs Client Server ( Is it not same? ) [closed]

I know what is peer to peer and what is client server. But I'm little bit confusing when I think that server is also another computer same as another peer. Then why NAT or something other not make an ...
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1 vote
0 answers
226 views

Understanding clients-server max-concurrent-connections and TIME_WAIT state

I know there are a lot of questions and also answers around the TIME_WAIT state of a socket connection, but somehow non of them (or maybe from an experts perspective all of them) help me to understand ...
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  • 111
2 votes
2 answers
5k views

WSUS Clients ignoring registry settings

I installed WSUS on Server 2012 R2. Installation went well on the server side. I do not have an Active Directory environment so I have to use registry settings on the clients. I used the following ...
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3 votes
1 answer
397 views

Docker: Collectd does not communicate between instances

I started a server instance in a docker container, connected with Facette frontend, looks cool, facette reads the rrd data. The problem begins when I want to receive data from other computer. I tried ...
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1 vote
1 answer
4k views

OpenVPN : Unrecognized option or missing parameter(s) in client.ovpn:15: block-outside-dns

None of the methods on the net worked for me so I decided to ask. When I try to sudo openvpn --config client.ovpn I get the result of Wed Aug 2 22:53:18 2017 Unrecognized option or missing ...
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1 vote
1 answer
864 views

SSH to OpenVPN client from OpenVPN server

I want to access each client of an OpenVPN server over SSH from the server itself. I don't want to enable the client-to-client setting since I don't want each client to talk to each other. I also don'...
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  • 13
0 votes
3 answers
1k views

How to run a client-server program on two virtual machines at different locations in Azure?

I created two virtual machines in Azure. One of them is in Australia South and the other is in Central India. I ran client program in one machine and server program in other machine. There are not ...
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  • 125
1 vote
1 answer
2k views

Communicating between private IP addresses on two separate networks through OpenVPN

I'm connecting two networks (Clients A and B) together using OpenVPN. Let's say Client A is behind a NAT with IP addresses 192.168.20.x and Client B is behind a NAT with IP Addresses 172.16.1.x. Is ...
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0 votes
2 answers
2k views

Windows Server 2012 R2 Secure / authenticated (i.e. using MD5 signed packets) NTP implementation (client) with an external (non AD) Time Server

I would like to ask if Windows Server 2012 R2 is able to authenticated NTP implementation (acting as a client) and using a defined (not Kerberos or AD related) symmetric key for authenticating and ...
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1 vote
1 answer
3k views

SCCM - How do I increase/decrease the interval time when adding a computer to a device collection?

In SCCM - when I add a computer to the Devices and then to a custom device collection, it takes a long time for it to show up in the Custom Device Collection. Is there a way to manipulate this time? I'...
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1 vote
0 answers
664 views

Spurious Retransmission after few days

we have strange situation with our client-server platform. On filed we have 10 clients with same firmware version but on different networks. Client sends 50 bytes of payload to server every 15sec. ...
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1 vote
2 answers
63 views

Is network delay up always the same as network delay down?

If I have a client-server architecture, is the up delay (from the client to the server) always the same as the down delay (from the server to the client)? On a case-by-case basis of latency ...
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  • 151
0 votes
1 answer
107 views

Is it possible to automatically present a client certificate?

When implementing client-side TLS certificates, the browser always presents a pop-up with the available (and possible suitable?) certificates. Is there a way for the server to request a specific ...
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  • 3,327
1 vote
1 answer
40 views

Application works after closing and restarting

I am working with an old Borland 1999 C++ client\server application that I don't have the source code to... unfortunately there is no vendor support or alternative this app. This is a bit of a head ...
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  • 474
1 vote
2 answers
119 views

Using POP3 and IMAP for same account

When using a mailserver I know that IMAP leaves all the mail in the server while pop3 downloads it and deletes it (sometimes after a few days, depending on the mail client configuration options). My ...
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0 votes
1 answer
838 views

How to log HTTP traffic in Fiddler for a Native App communicating with a VirtualBox server?

I have a Windows 7 host machine running Fiddler and a Ubuntu VirtualBox guest. On the host I'm running a client app (native, not .NET or Java) that allows me to set the server name and port but there ...
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0 votes
1 answer
1k views

Client Certificate Web Service Call

I have a requirement to call server web service with client certificate. They have provided me one .crt file. I am hosting my project in WindowsServer2008 IIS7. I install .crt from right click ...
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43 votes
6 answers
5k views

How can you tell what a server actually does? [closed]

I've been handed 3 Linux boxes, 1 front facing with apache on it and another 2 which, as far as I can tell, don't do an awful lot. All running on Redhat. The question is simple: How can I tell what ...
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  • 598
4 votes
1 answer
4k views

Problems on mounted NFS: 'No such file or directory' but files and directories exist

So we are having a medium-sized NFS4 storage server running CentOS 6.6 exporting an NFS share /storageDat (which is the NFS root, with two RAID volumes bound in there: ./dat1 and ./dat2); Export ...
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  • 41
2 votes
2 answers
640 views

Client computer(Windows 8.1 Pro) unable to connect to a domain(Windows Server 2012)

I am unable to connect a client pc to a domain controller which is a Windows Server 2012 Datacenter. I have tried connecting it : Through the system menu in Control Panel Putting all the credentials ...
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  • 41
3 votes
1 answer
10k views

Windows Server 2012, application needs administrative access to open port

How can I grant an application access to listen on one particular port, without running it as Administrator or disabling UAC? Per policy, had to transition from an old server (Windows Server 2003) to ...
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  • 135
0 votes
1 answer
2k views

I cannot connect to OpenSSH server running on Ubuntu server from Git bash running Windows, through Cyberoam firewall in network

Situation: I am trying to connect from OpenSSH client inbuilt with Git Bash running on Windows 7 professional x64 to OpenSSH server that runs on Ubuntu Server LTS 14 x64. Both of which are over the ...
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0 votes
1 answer
194 views

What better solution to adopt for client server system implementation by java sockets

I need some advice from someone experienced in networking. I have already created a system designed to monitor some tasks (5-30) that are written in java started by a auomatic scheduler or by ...
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0 votes
1 answer
420 views

TCP client and server work for X times but hang after that

I'm a software engineer, but I think my problem needs a network engineer... For the software side of things, have a look at my Stack Overflow question: https://stackoverflow.com/questions/21641219/...
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1 vote
1 answer
131 views

250 users with a data dir on a central server - how would you set it up?

I'd like to get best-practice advice on how to setup a scheme where 250 users or more have OS independent access to their own data-dir / user-dir on a central server in the local network. from the ...
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  • 703
0 votes
2 answers
562 views

I am trying to install Hadoop 0.23 but its not getting installed

I am trying to install Hadoop 0.23 on my fedora 13 but its not getting installed.On web every were there is support for hadoop 0.20 installation. I am trying installation from here. Every time i am ...
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