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Is it possible to ping a server from Javascript?
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Ping is ICMP, but if there is any open TCP port on the remote server it could be achieved like this:
function ping(host, port, pong) {
var started = new Date().getTime();
var http = new XMLHttpRequest();
http.open("GET", "http://" + host + ":" + port, ...
What is IP address '::1'?
...ser question, because it probably means something is broken with your IPv4 TCP/IP stack.
– Joel Coehoorn
Jan 6 '11 at 3:21
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Using port number in Windows host file
...80 is not occupied by another service.
You can check with netstat -a -n -p TCP | grep "LISTENING"
added the following network configuration with netsh command utility
netsh interface portproxy add v4tov4 listenport=80 listenaddress=127.65.43.21 connectport=8081 connectaddress=127.0.0.1
I can no...
Connect to Amazon EC2 file directory using Filezilla and SFTP
...rityGroups -> SSH -> Inbound rules -> Edit -> Add Rule (
SSH|TCP|22|My IP(it's get ip automatically | name for rule) -> Save
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Difference between Role and GrantedAuthority in Spring Security
...ind and replace" and i am back on track!
– Jørgen Skår Fischer
Jan 29 '16 at 23:20
12
This is a...
Warning: mysql_connect(): [2002] No such file or directory (trying to connect via unix:///tmp/mysql.
... driver making it use the UNIX socket to connect to MySQL instead of the a TCP socket.
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Convert a binary NodeJS Buffer to JavaScript ArrayBuffer
... Dec 18 '17 at 15:14
Linus Unnebäck
14k99 gold badges5959 silver badges7575 bronze badges
answered Jun 12 '13 at 11:20
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Django Setup Default Logging
...ation was not found in Django documentation.
– Eino Mäkitalo
Mar 12 '13 at 10:11
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Git SSH error: “Connect to host: Bad file number”
...27.239)
Host is up (0.10s latency).
PORT STATE SERVICE
22/tcp ***filtered*** ssh
Nmap done: 1 IP address (1 host up) scanned in 2.63 seconds
As you can see the state is Filtered, which means something is blocking it.
You can solve this by performing an SSH to port 443 (your f...
Application Loader stuck at “Authenticating with the iTunes store” when uploading an iOS app
...kes 15-20 minutes and successfully uploaded to AppStore. But please enable TCP port 443 access.
– Kirti Nikam
Jan 5 '15 at 6:19
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