16 Jan

Fix Segmentation fault ccminer in hg680p (armbian)

the problem:
[2022-01-16 05:09:15] 4 miner threads started, using 'verus' algorithm.
[2022-01-16 05:09:17] Stratum difficulty set to 131070
[2022-01-16 05:09:20] CPU T0: Verus Hashing
[2022-01-16 05:09:24] CPU T2: Verus Hashing
[2022-01-16 05:09:24] accepted: 1/1 (diff 325154.423), 642.14 kH/s yes!
./start.sh: line 7: 5723 Segmentation fault ./ccminer -a verus -o stratum+tcp:

problem solving:

Read More

08 Oct

CWP – Mail server not receive message

the problem:
myhostname postfix/smtpd[26105]: fatal: open database /etc/postfix/sender_whitelist.db: Bad file descriptor
myhostname postfix/master[25978]: warning: process /usr/libexec/postfix/smtpd pid 26105 exit status 1
myhostname postfix/master[25978]: warning: /usr/libexec/postfix/smtpd: bad command startup -- throttling

solve this problem:

# vim /etc/postfix/main.cf

remove this config "check_sender_access hash:/etc/postfix/sender_whitelist" and then restart postfix service.