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Good practices
ALWAYS decentralize POW networks, it's your first duty as a crypto-miner.
NEVER mine directly to an exchange address, rule number one in blockchain: NOT your private keys, NOT your coins.
ALWAYS check if the pool latency, relative to your geographical location, is within a range of acceptance: < 300ms.
Download the open source tool: Stratum ping.
Using port with SSL
./stratum-ping -tls arqma.cedric-crispin.com:
PING stratum arqma.cedric-crispin.com (192.168.1.4) TLS port
arqma.cedric-crispin.com (192.168.1.4): seq=0, time=7.978193ms
arqma.cedric-crispin.com (192.168.1.4): seq=1, time=1.073831ms
arqma.cedric-crispin.com (192.168.1.4): seq=2, time=1.052141ms
arqma.cedric-crispin.com (192.168.1.4): seq=3, time=1.10494ms
arqma.cedric-crispin.com (192.168.1.4): seq=4, time=1.043254ms
--- arqma.cedric-crispin.com ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 5.121688332s
min/avg/max = 1.043254ms, 2.450471ms, 7.978193ms
Using port without SSL
./stratum-ping arqma.cedric-crispin.com:
PING stratum arqma.cedric-crispin.com (192.168.1.4) port
arqma.cedric-crispin.com (192.168.1.4): seq=0, time=6.406905ms
arqma.cedric-crispin.com (192.168.1.4): seq=1, time=692.268µs
arqma.cedric-crispin.com (192.168.1.4): seq=2, time=1.066089ms
arqma.cedric-crispin.com (192.168.1.4): seq=3, time=1.015254ms
arqma.cedric-crispin.com (192.168.1.4): seq=4, time=769.342µs
--- arqma.cedric-crispin.com ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 5.012300743s
min/avg/max = 692.268µs, 1.989971ms, 6.406905ms
Bitcoin (BTC) stratum server