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How to construct a WebSocket URI relative to the page URI?
...
Here is my version which adds the tcp port in case it's not 80 or 443:
function url(s) {
var l = window.location;
return ((l.protocol === "https:") ? "wss://" : "ws://") + l.hostname + (((l.port != 80) && (l.port != 443)) ? ":" + l.port : "")...
Node.js EACCES error when listening on most ports
...s to make port redirection:
sudo iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 900 -j REDIRECT --to-port 3000
And run your server on >1024 port:
require('http').createServer().listen(3000);
ps the same could be done for https(443) port by the way.
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how to release localhost from Error: listen EADDRINUSE
... <port>
If the port is being held you'll see something like this:
tcp 0 0.0.0.0:<port> 0.0.0.* LISTEN <pid>/<parent>
Now kill by pid:
kill -9 <pid>
share...
PostgreSQL database default location on Linux
...ters" (data directories). Of course, each instance would listen on its own TCP/IP port.
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Error in exception handler. - Laravel
...nt I finally saw an enlightening message:
string(41) "Connection refused [tcp://127.0.0.1:6379]"
which in my case was a bad redis configuration, but in your case could be anything.
I hope this helps someone, or at least next time I get here I will find my own answer.
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OpenSSH升级后不能登录的问题 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...to tell
# SELinux about this change.
# semanage port -a -t ssh_port_t -p tcp #PORTNUMBER
#
#Port 22
#AddressFamily any
#ListenAddress 0.0.0.0
#ListenAddress ::
# The default requires explicit activation of protocol 1
#Protocol 2
# HostKey for protocol version 1
#HostKey /etc/ssh/ssh_h...
How SID is different from Service name in Oracle tnsnames.ora
...hereever.com =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = myHostname)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = mySID.whereever.com)
(SID = mySID)
(SERVER = DEDICATED)
)
)
I just thought I'd leave this here as it's mildly relevant to the questio...
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
...sing or wrong in JDBC URL.
DB server is down.
DB server doesn't accept TCP/IP connections.
DB server has run out of connections.
Something in between Java and DB is blocking connections, e.g. a firewall or proxy.
To solve the one or the other, follow the following advices:
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What is the difference between AF_INET and PF_INET in socket programming?
...s Format, Internet = IP Addresses
PF_INET = Packet Format, Internet = IP, TCP/IP or UDP/IP
AF_INET is the address family that is used for the socket you're creating (in this case an Internet Protocol address). The Linux kernel, for example, supports 29 other address families such as UNIX sockets a...
Viewing my IIS hosted site on other machines on my network
...hers said your Firewall needs to be configured to accept incoming calls on TCP Port 80.
in win 7+ (easy wizardry way)
go to windows firewall with advance security
Inbound Rules -> Action -> New Rule
select Predefined radio button and then select the last item -
World Wide Web Services(HTTP...