Questions tagged [connection]
A connection generally refers to a TCP/IP connection, that is established as the result of the handshake between 2 hosts.
735
questions
0
votes
1
answer
10
views
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/...
0
votes
0
answers
29
views
Docker container has no internet ... GoDaddy hosting
It's GoDaddy hosting (Linux 4.15.0-176-generic #185-Ubuntu)
docker 1.5-1build1
$ docker pull busybox
$ docker run busybox ping -c 5 google.com
PING google.com (142.251.33.206): 56 data bytes
--- ...
1
vote
0
answers
18
views
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 ...
- 821
0
votes
2
answers
64
views
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 ...
- 143
0
votes
0
answers
76
views
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'
...
- 31
0
votes
0
answers
106
views
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 ...
- 3
0
votes
0
answers
22
views
Large number of RST/ACK packages from my Ruby on Rails server
I have a Rails server (ROR) behind my Firewall (FWL). ROR must constantly send information to Digital Ocean Spaces (DOS). Note that ROR is not in Digital Ocean datacenter.
ROR <--> FWL <-->...
0
votes
0
answers
30
views
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 ...
- 123
0
votes
1
answer
1k
views
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 ...
- 101
0
votes
1
answer
23
views
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
[...
2
votes
0
answers
35
views
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 ...
- 21
0
votes
0
answers
16
views
GCP TCP Load balance IP at some countries are failed to connect, TCP 80 443 connected to this IP frequently timeout, any limit of TCP connections?
Hi we create GCP server and load balance at Singapore and Germany, at recently, both this two data centers Load Balance IP at some countries are failed to TCP connection, sometime are OK, but sometime ...
- 1
0
votes
0
answers
49
views
Concurrent ssh connections on control server keep dropping
I'm facing an issue with setup I am using for ocassionally doing maintenance on a bunch of customer servers via remote SSH
Following Setup:
1 Control Server
X Arbitrary number of Customer servers set ...
- 101
0
votes
1
answer
171
views
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 ...
- 353
0
votes
0
answers
118
views
Could not SSH and when I try to connect to the server using telnet I received the error "could not open connection to the host, on port 22"
I have spin up database server using customer AMI. All of my team members are on same network and I am able to SSH and telnet to the server but one of my team member is not able to SSH and telnet to ...
0
votes
0
answers
23
views
Google PubSub issues
We have been getting this error for the past 14 hrs on our PubSub application.
Request to https://www.googleapis.com/oauth2/v4/token failed, reason: Client network socket disconnected before secure ...
- 1
-1
votes
1
answer
400
views
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&...
0
votes
2
answers
125
views
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 ...
0
votes
1
answer
150
views
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 ...
- 103
0
votes
1
answer
1k
views
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 ...
0
votes
0
answers
266
views
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 ...
- 101
0
votes
0
answers
121
views
Connection string for my SQL Server connection from C on Linux
I am trying to connect to SQL Server using C program on Linux.
My connection string is this:
DRIVER = {ODBC Driver 17 for SQL Server}; Server = 192.168.0.25,52000;Database = db; UID = ud, PWD = pw;
...
0
votes
0
answers
19
views
Disconnecting postgres proxy for many connections to single database
We're currently looking into how we could scale a system in which we have many users, each with their own postgres schema, and their own DB user credentials to ensure isolation. This however means ...
- 421
0
votes
1
answer
514
views
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?
0
votes
0
answers
744
views
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 ...
- 703
0
votes
1
answer
455
views
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:
...
google-cloud-platform
0
votes
0
answers
73
views
Less requests per second on Apache Bench test from same server
I ran following test on one of my website from the server where it is hosted itself.
ab -n 100 -c 10 https://example.com/
It serves very less number of requests per second.
The server configuration ...
- 101
0
votes
1
answer
519
views
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 ...
0
votes
0
answers
29
views
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 ...
1
vote
0
answers
197
views
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 ...
- 11
1
vote
2
answers
43
views
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....
- 1,109
0
votes
0
answers
358
views
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 ...
-2
votes
1
answer
133
views
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 ...
- 1
0
votes
0
answers
22
views
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 ...
0
votes
0
answers
936
views
No valid IP addresses found for subdomain with certbot
I am currently trying to set up an email server, and recently stumbled over getting a SSL certificate from Let's Encrypt in this question and realizing it isn't necessary if I don't have a web server, ...
- 43
1
vote
1
answer
106
views
Traffic stops after some minutes via VPN gateway between vnet and on premise machines and then starts again
I have a on prem network (192.168.100.0/24) and a vnet (10.0.0.0/16). On prem a Fritzbox 7490 connects with ipsec policy based connection to the VPN gateway in azure. Connection is up and running, no ...
- 11
1
vote
0
answers
102
views
Postgres remote connection timeout works on one machine but not on another
im trying to connect remotely to a postgres database, after opening the connection for my public IP address on the server hosting the database, I was able to connect successfully to the database from ...
- 11
2
votes
1
answer
352
views
Connect Azure Web App to policy-based VPN
I have an Azure Web App that needs to connect to the addresses xx.x.x.10 and xx.x.x.12 the customers on-premise server.
For this purpose the Customer have setup a Policy based VPN (Cisco ASA 9.8) with ...
- 21
0
votes
1
answer
39
views
Customizing Cognos 11.1.6 Connection Portal
Previously in Cognos 10 you could customize the connection portal by adding a company logo and/or fonts and colors. These settings could be changed by editing the banner.css file on the gateway web ...
- 578
-1
votes
1
answer
84
views
DHCP Server stops handing out leases
I currently have a DC running Windows Sever 2008 R2 (yes I know) and for the past two weeks, when employees travel back to the office, they can't connect to the internet unless I do one of two things.
...
0
votes
1
answer
185
views
Network settings to execute webapplication performance tests from Windows Server
Web applications needs to be tested from a Windows Server 2012 R2 machine. Performance tests are executed with JMeter 5.3 on 300-400 threads. During test execution, following errors are coming in ...
- 261
0
votes
1
answer
61
views
Common reasons for refused connection
When you try to access a HTTP server (e.g., www.example1.com) and the connection is refused, what could be some common reasons at the server end?
1
vote
1
answer
854
views
UFW blocks Docker interfaces when default outgoing policy is 'deny'
Given that I configured UFW like so
ufw default deny incoming
ufw default deny outgoing
and just allowed certain ports for outgoing and incoming connections. It works fine, except when connecting ...
- 11
1
vote
1
answer
1k
views
What is meant by TCP connection pooling?
Why is creating a new TCP connection regarded as expensive? was the question I had in mind when another one came to my mind.
What exactly is meant by keeping a TCP connection alive and what is meant ...
- 113
1
vote
1
answer
377
views
Keeping SSL connection active between reverse proxy and backend server
I have a back-end server (Apache) that is too far from most of our users, so our idea is to implement a closer reverse proxy that will act as a cache.
At first glance it worked as a charm. The cached ...
1
vote
1
answer
1k
views
What is .max_connections parameter in varnish vcl and how to caculate this value for backend nginx server
I have seen .max_connections parameter in varnish default.vcl and by seraching in web, found the artile below
.max_connections: how many connections you authorize Varnish to open to this backend. ...
0
votes
0
answers
62
views
I can ssh from host1 into host2, but on host 2 I seem to have no connectivity to the network (no ping, no dns, nothing works)
I assume it's related to a bad configuration on host 2 because a 3rd host plugged into 2'socket works fine. This is all wired in the same subnet with a switch in between.
'ping' produces 100% packet ...
0
votes
1
answer
72
views
how to do scp in linux
I am getting following error while doing scp, what could be the reason?
[~/workspace/xr-dev/call-home/core/src] /usr/bin/scp myfile.c host2:/scratch/shirohua/
shirohua@host2's password:
usage: scp [-...
- 1
4
votes
3
answers
748
views
How to intentionally cause ssh root connection refused
Simple, how do I make ssh (port 22) drop/refuse a connection if root@ip_address request is received, but still allow user@ip_address to work properly. Basically hide the fact there's a server at that ...
- 49
1
vote
2
answers
156
views
Random MySQL connectivity issues?
I can run the exact same command over and over again and sometimes it works, sometimes it doesn't:
root@bak-rrk9m:/# mysql -Bsuroot -p"$MYSQL_ROOT_PASSWORD" -h"$...
- 303