>sudo apt-get install openssh-server /etc/ssh/sshd_config の portの番号を替える。 >sudo service ssh restart
# Debian specific: Specifying a file name will cause the first # line of that file to be used as the name. The Debian default # is /etc/mailname. #myorigin = /etc/mailname smtpd_banner = $myhostname ESMTP $mail_name (Raspbian) biff = no # appending .domain is the MUA's job. append_dot_mydomain = no # Uncomment the next line to generate "delayed mail" warnings #delay_warning_time = 4h readme_directory = no # See http://www.postfix.org/COMPATIBILITY_README.html -- default to 2 on # fresh installs. compatibility_level = 2 # TLS parameters smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key smtpd_use_tls=yes smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache # See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for # information on enabling SSL in the smtp client. smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination myhostname = raspberrypi alias_maps = hash:/etc/aliases alias_database = hash:/etc/aliases myorigin = /etc/mailname mydestination = $myhostname, mail.alone.net, alone.mydns.jp, raspberrypi, localhost.localdomain, localhost relayhost = [alone.ohana.ne.jp]:587 smtp_sasl_auth_enable = yes smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd smtp_sasl_security_options = noanonymous smtp_sasl_tls_security_options = noanonymous smtp_sasl_mechanism_filter = plain, login #tls setting smtp_use_tls = yes mynetworks = 127.0.0.0/8 192.168.0.0/24 mailbox_size_limit = 0 recipient_delimiter = + inet_interfaces = all inet_protocols = ipv4 # TLS parameters smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key smtpd_use_tls=yes smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache # See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for # information on enabling SSL in the smtp client. smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination myhostname = raspberrypi alias_maps = hash:/etc/aliases alias_database = hash:/etc/aliases myorigin = /etc/mailname mydestination = $myhostname, mail.alone.net, alone.mydns.jp, raspberrypi, localhost.localdomain, localhost relayhost = [alone.ohana.ne.jp]:587 smtp_sasl_auth_enable = yes smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd smtp_sasl_security_options = noanonymous smtp_sasl_tls_security_options = noanonymous smtp_sasl_mechanism_filter = plain, login #tls setting smtp_use_tls = yes mynetworks = 127.0.0.0/8 192.168.0.0/24 mailbox_size_limit = 0 recipient_delimiter = + inet_interfaces = all inet_protocols = ipv4
原因は良く分からないのだけど、C言語用のpostgresのAPIの環境と一緒に使うと、コンパイルエラーが発生する現象に悩まされていた。
#include#include int main(int argc, char **argv) { fprintf(stderr, "start\n"); usleep(1000000); fprintf(stderr, "end\n"); return 0; }
で、これまで見たことがない、以下のエラーが発生するようになってしまった。
error: 'usleep' was not declared in this scope usleep(1000);
原因ははっきりしないのだけど、
g++ -g db20190415.cpp -o db20190415 -I"D:\PostgreSQL\10\include" -L"D:\PostgreSQL\10\lib" -llibpq -lwsock32 -lws2_32
とか、
#include "libpq-fe.h"
が怪しそうである(これらを追加したら、出てきたから)。
==============
暫く悩んだのだけど、usleep()を使わない方法を、試してみた。
#include#include int main(int argc, char **argv) { struct timespec ts; fprintf(stderr, "start\n"); ts.tv_sec = 0; ts.tv_nsec = 999999999/35; // 1/35秒と見なして良い nanosleep(&ts, NULL); fprintf(stderr, "end\n"); return 0; } // 出展 https://www.mm2d.net/main/prog/c/sleep-01.html
これで良しとした。