I've the MIKROTIK router on KVM. after transfer MIKROTIK to new server and change the router IP my client can not connect to the server. and in the server log file show me this error: phase1 negotiation failed due to time up XX.XX.XX.XX[500]<=>XX.XX.XX.XX[500] 3f80f907708fbe3a:4a3ab01f25adc16f
can help me to fix this.
Related
I am trying to connect my oracle cloud database using sqldeveloper with connection type basic but it fails connection with error:
Status : Failure -Test failed: IO Error: The Network Adapter could not establish the connection.
Anyone can help how can i connect my oracle db system using sqldevloper with connection type either basic or TNS ??
Have you tried to telnet the server on port 1521?
It sounds likely that the dbsystem is not connected to the internet.
Please check if the dbsystem subnet has:
Security List with a rule to allow port 1521 on your ip address
Routing Table that allows internet access via internet gateway
I am new to axon server. I use axon server as remote server in spring boot. not in the localhost. but when the spring boot application connect to the server it fails and show the fallowing error.
Connecting to AxonServer node [174.298.31.***:8024] failed: UNAVAILABLE: Network closed for unknown reason
Failed to get connection to AxonServer. Scheduling a reconnect in 2000ms
my property file like below,
axon:
axonserver:
servers: 174.298.31.***:8024
if you didn't change the default port, 8024 is the default port for HTTP access to the server dashboard. but when you try to connect to the server using a client, it is not the communication port, the communication protocol is 8124. please try putting 8124 port. 8024 only for the dashboard.
axon:
axonserver:
servers: 174.298.31.***:8124
I have googled and searched all over but I am still having trouble getting connected to a site using the ftpzilla
I am getting this read out when I try to connect to the server using the network connection wizard
Connecting to probe.filezilla-project.org
Response: 220 FZ router and firewall tester ready
USER FileZilla
Response: 331 Give any password.
PASS 3.9.0.6
Response: 230 logged on.
Checking for correct external IP address
Retrieving external IP address from
http://ip.filezilla-project.org/ip.php
Checking for correct external IP address IP 173.56.114.112
bhd-fg-bbe-bbc
Response: 200 OK
PREP 60010
Response: 200 Using port 60010, data token 1063172065
PORT 173,56,114,112,234,106
Response: 200 PORT command successful
LIST
Response: 150 opening data connection
Response: 503 Failure of data connection.
Server sent unexpected reply.
Connection closed
The weird thing is I only get this error for this particular server and the server I use for my personal site (namecheap.com) gives me no such error. Does anyone know why this may be happening? And please try not to point me to the network configuration wiki because I have read through that and I still am at this point.
PORT 173,56,114,112,234,106
....
Response: 503 Failure of data connection.
...
please try not to point me to the network configuration wiki
You are using active mode, that is the ftp client (FileZilla) waits for a connection from the server. Obviously the server can not connect to the client which indicates that something like a firewall restricts the connection.
Since according to your description this happens only with few servers, you either use only these servers with active mode or these servers are protected by firewalls which do not allow active mode. Have you tried with passive mode?
I had a similar issue connecting and made the following changes and had success.
Go to File>>>Site Manager>>>
For my site, I changed the Encryption to "Only use plain FTP(insecure)" and had success. May you find the same success.
I'm using BOOST-ASIO for a simple echo client-server (there is a separate link for the client and server). When I try to run the server I use this async_tcp_echo_server 4000. For the client I use blocking_tcp_echo_client #.#.#.# 4000 (with #.#.#.# as the ip address). I'm on XP-SP3 with my computer connected to my wireless dsl modem using a usb card. After a few seconds on the client side I get this error:
Exception: connect: A connection attempt failed because the connected party did
not properly respond after a period of time, or established connection failed be
cause connected host has failed to respond
Any ideas what it could be? I turned off my firewall including the windows firewall and still I get no response. Could my port be in the incorrect range? Do I need to include a computer name to specify the machine on the network( there are other machines on the network sometimes active)? I did try running this on another computer directly connected to the dsl modem and same issue. I did ping my address and that did work for 4/4 packets.
It could be a variety of issues. Thus, it can be worthwhile to use lower level networking tools, such as netcat to serve a port on the server, and try connecting with netcat from the client side. This can help simplify the problem by removing any potential problems introduced by an application's network programming code. If the problem is identified as being a network issue, then there are a few things to check:
Verify firewall exceptions on the server.
Verify firewall exceptions in the server's network gateway.
If the server and client are on different networks, with the client trying to connect to the server's external IP, then verify that the server's gateway knows what traffic to route to the server. This may require setting up rules, such as port forwarding, in the routing device.
If the server and client are on the same network, but the client is trying to connect to the server through the network's external IP, then verify that the gateway supports looping back internal traffic destined to the external IP.
Use a network analyzer tool, such as Wireshark, to verify that the time to live field in the packets is high enough that it will not be discarded.
you could try
$ telnet server-ip 4000
from your client and see if it is possible to establish the tcp connection.
First of all, sorry for my bad English : )
My Java application (multiplayer game server) uses this package to communicate with a web application in client's browser using websockets: https://github.com/TooTallNate/Java-WebSocket
I've encountered a problem running my application: only I can connect to the websocket server, clients on other hosts can't do so. In browser I estabilish connection as usual, address here is certainly correct:
new WebSocket("ws://"+serverIp+":8787");
When I connect from my own host to the websocket server running on the same host, it runs perfectly. When other hosts try to connect to me, connection in not being estabilished: in browser WebSocket objects's .readyState is 0 (whilst it should be 1), and even server does not recieve any handshakes (no output from onClientOpen in server console, I even tried to get any output from certain WebSocketServer class' methods).
Other hosts are still recieving, for example, static contents of web application from webserver on 80 port on the same host. Problem is not the closed 8787 port: I checked it, it's open.
What may be the reason that other host can't connect to my websocket server?
WebSockets uses a cross-origin permission system. You might need to tell you WebSocket server to accept connections from more than just your local host. The verification of Origin happens during the WebSocket handshake which likely happens prior to onclientOpen.