大约有 720 项符合查询结果（耗时：0.0187秒） [XML]
How to check internet access on Android? InetAddress never times out
...ernet is available.
B) Connect to a Socket on the Internet (advanced)
// TCP/HTTP/DNS (depending on the port, 53=DNS, 80=HTTP, etc.)
public boolean isOnline() {
try {
int timeoutMs = 1500;
Socket sock = new Socket();
SocketAddress sockaddr = new InetSocketAddress("8.8.8...
How to find where gem files are installed
... (no bundler on my servers). Example is useful: gem which 'logstash/inputs/tcp.rb'
– Cameron Kerr
Jun 27 '18 at 2:03
T...
Differences between fork and exec
...s was used quite a lot (and still is) for daemons which simply listen on a TCP port and fork a copy of themselves to process a specific request while the parent goes back to listening.
Similarly, programs that know they're finished and just want to run another program don't need to fork, exec and t...
Is Mono ready for prime time? [closed]
...ono in a prime-time env.
I run mono servers dealing with giga-bytes of udp/tcp data processing related tasks and couldn't be happier.
There are peculiarities, and one of the most annoying things is that you can't just "build" your msbuild files due to Mono's current state:
MonoDevelop (the IDE) h...
What is the difference between HTTP and REST?
... simplifies application design.
HTTP is itself a stateless protocol unlike TCP and thus RESTful Web Services work seamlessly with the HTTP protocols.
Disadvantages of Statelessness:
One extra layer in the form of heading needs to be added to every request to preserve the client's state.
For se...
Are GUID collisions possible?
...olliding (~1 in 10^38) is lower than the chance of not detecting a corrupt TCP/IP packet (~1 in 10^10). http://wwwse.inf.tu-dresden.de/data/courses/SE1/SE1-2004-lec12.pdf, page 11. This is also true of disk drives, cd drives, etc...
GUIDs are statistically unique and the data you read from the db...
Right query to get the current number of connections in a PostgreSQL DB
...
Number of TCP connections will help you. Remember that it is not for a particular database
netstat -a -n | find /c "127.0.0.1:13306"
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how can I see what ports mongo is listening on from mongo shell?
...
You can do this from the Operating System shell by running:
sudo lsof -iTCP -sTCP:LISTEN | grep mongo
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When should one use a 'www' subdomain?
... www, why not change the your HTTP server to use a different port as well, TCP port 80 is sooo yesterday.. Let's change that to port 1234, YAY now people have to say and type "http://stackoverflow.com:1234" (eightch tee tee pee colon slash slash stack overflow dot com colon one two three four) but a...
Can I run multiple programs in a Docker container?
...ever.
With two different containers, the two parts still communicate over TCP/IP, but unless the ports have been locked down specifically (not recommended, as you'd be unable to run more than one copy), you would have to pass the new port that the database has been exposed as to the application, so...