On Fri, Aug 20, 2021 at 2:11 PM Mantas Mikulėnas <graw...@gmail.com> wrote:
> On Fri, Aug 20, 2021 at 2:10 PM Nishant Nayan <nayan.nishant2...@gmail.com> > wrote: > >> Regarding the below point : >> c) The service prints to stdout/stderr, but systemd attaches the >> service's stdout/stderr to a pipe which is read by journald (using >> sd_journal_stream_fd(3) from libsystemd). See [Service] StandardOutput= in >> systemd.service(5). >> >> I did not see StandardOutput field in [Service] sections of a service >> file, for example sshd.service, but its logs are visible in journalctl. >> Is it by default piped to journal and we need to explicitly mention it >> (StandardOutput=) only when we want to redirect it somewhere else? >> > > StandardOutput=journal is the default setting. > And, actually, sshd doesn't write its messages to stdout anyway – it uses syslog() via /dev/log; most daemons do. -- Mantas Mikulėnas
