Questions tagged [connection]
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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Cannot access to Instance VM in GCP
Appears this message, but even trying the troubleshoot i have a OK in VM status, Network status and Users permisions.
Connection failed
We are unable to connect to the VM on port 22.
Please ensure ...
google-compute-engine
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SSH connection takes long time to establish over NAT
I have the following problem. When I want to connect to my Centos Server over SSH using Putty/Winscp from outside the network using NAT it takes quite a long time. The connection established from ...
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debian machine drops connection time by time
I've a Debian 11 machine with some audio streaming on it. The last days the connection drops and the dj's and listeners are dropping with a connection fault. When i monitor the network i see in ...
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SSH_CLIENT variable bringing the server's IP instead of the client's IP when connecting via SSH
I need to monitor the SSH access logs of an Oracle Linux Server 7.9 to determine which machines accessed this server throughout the day. However, the logs display the IP of the server itself instead ...
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Cannot connect to server using some applications
I've been using ssh to connect to my server for weeks, but 24h ago it suddenly stopped working. The following things I tried:
When I enable VPN on my local machine I can connect
When using my phone's ...
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FireFox gets ns_error_net_interrupt when clicking on loaded page
FireFox is connecting to my website, but accessing already visited pages would randomly not connect resulting in a
Secure Connection Failed
Chrome and Microsoft Edge are not having that problem.
...
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Mail server woes
A problem has cropped up on my network today and I'm rather confused.
Firstly here's the setup of my network....
Internet traffic comes in via static ip.
Ubiquiti Dream Machine Pro forwards mail ...
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postfix time to time issue delivery temporarily suspended connection timed out
I have a Postfix installed on an Oracle Linux server. This Postfix is configured to receive emails from another Postfix server, which are sent externally through the Fortinet Cloud Email Security ...
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Nginx yielding 499 status due to upstream connection reset
Have read other posts; they do not yield much light.
Situation:
Kubernetes cluster with ingress points to
Several nginx containers that proxy-pass to a
Node application on a specific URI via location ...
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Kubernetes connection refuses often
I have configured Kubernetes using kubeadm in cent os stream 9. When I issue kubectl commands i am getting this error often
The connection to the server xx.xxx.xx.xx:6443 was refused - did you ...
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When connecting to my server through my domain, I get connection error. however, on a VPN it connects just fine [closed]
New poster here so unsure if this is the correct stack exchange.
But basically, I use NPM (Nginx Proxy Manager) to direct internet traffic to various VMs running on my hub server running proxmox.
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Failed to connect to https://changelogs.ubuntu.com/meta-release-lts. Check your Internet connection or proxy settings
I have recently (past 24 hours) noticed the above message when logging into a headless server over WAN via ssh.
When I try to apt-get update the server, I get "Failed to fetch ... Temporary ...
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How can I check if an outgoing connection is blocked by local firewall?
I have a situation, where my server can't connect to an SMTP server, while my PC can. But the same server can connect to another SMTP server. I think that my firewall might be blocking it. How can I ...
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Drop ALL the TCP connections (ESTABLISHED,RELATED) in Ubuntu
I'm facing a few hosts sending a flood of requests to my webserver (NGINX). I'm trying to block them via iptables, with ipset and a good old DROP rule.
The rule is effective against NEW connections, ...
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HTTP request fails with connection time out, but only from our server
My web application is running on a dedicated linux server located at a major hosting company. It needs to connect to an API provider, but libCurl always reports a connection timeout. I've boiled it ...
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Can no longer connect to server (an error occurred during the pre-login handshake)
Apologies if this isn't the place to ask this, or if it isn't enough information to go off of. I'm pretty new at this and don't know what or where else to ask.
Since two nights ago, nobody can connect ...
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Jenkins Plugins Error After Update - "Errors Checking Update Site"
I'm running Jenkins on a RHEL 7.9 server, with OpenJDK 11.0.17. I recently updated Jenkins to version 2.361.4 from 2.346.3. After updating I went to the plugins manager page to see what plugins ...
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Intermittent RDP disconnects
We have a Windows Server 2016 VPS which we use to run company software on it.
Users have to RDP to it, each one of them has its own separate session. At one of our sites, we have poor 4G internet ...
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Which machine is actually closing the TCP socket and why?
I'm working on a C# application, handling TCP sockets.
I have a server application (Hercules) on the remote machine, trying to keep a socket open.
I have my application on my machine, subscribing to ...
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Why does connectivity differ for straight and crossover cabling towards 1Gbit MDI-X capable switch (from Linux OS)?
There's no constraint with directly connecting a Realtek 1000/100/10Mbit transceiver towards a common router.
There was no connection ('Could not activate connection: Connection 'Name of Lan ...
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User in Iran can't communicate with my server in the U.S
Someone on Iran is unable to connect to my service which is hosted on a server in the U.S. It seems like most other services work for them fine but mine does not.
I asked them to ping the server and ...
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ping, but no throughput to server via wireguard from raspberry pi
I have a wireguard setup with a dedicated root server machine acting as the vpn subnet`s server.
As clients, I want to connect a lot of raspberry-pi clients (3&4) - all of them having their own ...
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Errors about Making Failover-Cluster on Hyper-V with Win-Server-19 on Powershell
Good day. On my working have task to make Cluster incide cluster on Hyper-V.
Started to do this. Made 3 virtual PC on Hyper-V, download Failovering cluster by command:"Install-WindowsFeature ...
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website says connection insecure if typed without the protocol
I have a website and when I type the url with 'https://' the browser shows the site normally, however if I do not include 'https://' in the url, the browser brings me to a page that says my connection ...
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1k
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BGP: I cannot ping an address even though it exists in the routing table
I have the topology from the attached image with I-BGP neighborship between 192.168.21.1 and 192.168.21.2 and E-BGP neighborship between 192.168.6.1 and 192.168.6.2. I have advertised network 2.2.2.2/...
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754
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Squid basic auth connection problems
We are using squid proxy with basic authentication. Each user has it's own outgoing ip configured. See parts of our squid.conf:
# Authentication Basic Auth
auth_param basic program /usr/lib/squid/...
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Cannot get a response from host, but only from my internet connection
I'm trying to connect to a website that I own. It's a domain that points to a shopify store.
The browser just hangs when attempting to load the site. When I issue a request using curl I get the ...
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Unable to connect to my self hosted cloud MQTT broker
I have followed the instructions to configure Mosquitto on CentOS 7, provided by digital ocean. I believe I have most of the stuff set up correctly, I was able to follow all the instructions with some ...
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Infiniband adapter down
edit: On CentOS 8.5, tried with Mellanox driver 4.9-4.1.7.0 (legacy) and 5.5-1.0.3.2:
I am not able to get my Infiniband adapter working.
The output of ibstat states that it is down:
CA 'mlx5_0'
...
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How to close connection when using PSExec on multiple remote computers?
I am using PSExec to run scripts on multiple computers and after a few computers I start getting connection errors (probably because of concurrent connections limit on Windows 10).
PSExec command I am ...
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error connecting to linux server from windows client
When a windows machine pings to linux server to run application specific python commands, it does connect. The firewall is also disabled on linux server. mongodb is database server here. database is ...
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One remote RDP user often gets stuck on "Please wait for the local session manager" from a shared virtual Windows Server 2019; others work
The server is a shared virtual server slice running Windows Server 2019. (Set up by InterServer - I'm the software developer of the customer.)
A remote Windows 10 computer in location A usually ...
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How do 2 users on ansible node connect to thesame worker node
I set up 2 new users with their respective key pairs,.. their public keys ve been established on the remote host. The problem am having is I passsed the ssh keys on the host file as follows
[...
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Server Connection Issue - With OK CPU/RAM
Recently we had an occurrence where we were unable to connect to mutliple masters on our Redis cluster.
Connections from our code base were timing out. We were also unable to SSH into the box during ...
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syslog-ng / telegraf : EOF occurred when idle - incompatible?
This is a follow-on question from this previous question, created because I found out more information and it's cleaner to pose this as a new question.
I'm using syslog-ng OSE v3.31.2 to receive ...
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2k
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Too many RPC connections make web socket closed
Several servers are connected via RPC. There are times when apps in OS have too many RPC calls, which causes the network to become closed.
What is the best way to debug or configure my OS?
"msg&...
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2
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560
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AWS EC2 MySQL Replication: Config To Query Slave From Master
I have successfully set up a MySQL master-slave situation on separate AWS EC2 instances.
The slave is running and is successfully replicating the master.
So far so good.
Now I want to be able to query ...
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How to access Jetty Server from outside LAN?
I originally posted this question on stackoveflow but was advised that it would be more suited to this site.
I am trying to access a Jetty Server deployed on one machine from another machine outside ...
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How to connect backend to a mongodb docker container
I made this docker-compose file as written on docker hub / mongodb
then I use the command docker-compose up -d which pretty standard to launch a container.
# Use root/example as user/password ...
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Suddenly start getting err_connection_reset
Suddenly I started to get the net::err_connection_reset 200. It only happens in one page of my site, all the other pages load fine. I removed everything from the controller and model and only left the ...
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No internet access after config iptables
After that configuration:
iptables -P INPUT DROP
iprables -A INPUT -j DROP
iptables -P OUTPUT ACCEPT
iptables -A OUTPUT -j ACCEPT
Now can't access internet normally or through VPN.
What's wrong?
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Cannot connect to RDP on Windows 2019 member server
I just finished standing up a new member-server VM with Windows Server 2019 Standard, but I cannot connect to it on port 3389:
Windows Defender Firewall is disabled on all profiles:
The services are ...
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973
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Can not connect to a Google Cloud TPU using ssh (putty) in Windows
I have a google v3-8 TPU, i can't figure out how to connect to it using ssh in windows.
I did every guide there is, but the connection just times out.
What i tried (among others):
1.
Dos command line:
...
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1k
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Connection to Synology VPN server not working
I own two Synology NAS (at different places). The first one is set up as an OpenVPN server. All my devices(android mobile, windows pc, mac) work fine when connected to the synology VPN server but when ...
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I cannot connect to my VM Instance all of a sudden
I have a Google Cloud VM Instance which had been working perfectly up until today. I have tried to log onto it all day but it won't connect through my phone or laptop. I haven't changed any settings ...
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Can't see node STRAPI CMS application from outside - ERR_CONNECTION_REFUSED
I tried to run STRAPI CMS on my VPS.
App runs via PM2 and internal curl is ok, I see response from app
curl -v http://127.0.0.1:1337
But external curl is problem, nowadays I want to access just it ...
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Connecting SCA-2 Ultra320 disk to some controller using some cable
This is "blast from the past" type question.
I need to make a backup of data stored on SCSI disk used in a large industrial machine.
That machine takes SCSI Ultra320 drives like Cheetah 10K....
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ssh connection refused for Google Cloud Platform instance
I am trying to connect to my Google Cloud VM instance through SSH. I didn't have any problem before I mounted a new 500GB zonal persistent disk and even then I was able to ssh and format the disk and ...
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how can torrent be p2p and without needing to open ports? [closed]
I've been using torrent for years now and I am planning to write a simple golang program to manage p2p connections...
But since I see everywhere that for a p2p program to work, one must specify an ...
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Even though SELinux, firewalld, iptables are disabled on my VPS "curl: (7) Failed connect to ... Connection refused error" [duplicate]
I rented a KWM VPS storage server (CentOS 7) and I can access it via SSH and SFTP.
But I can't do anything with it because it refuses everything. I didn't install anything on it, didn't change any ...
