agetty : not a tty in auth.log file
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I was checking my auth.log file when I saw multiple lines like this one : Jul 30 22:34:08 <server-name> agetty[31666]: /dev/ttyS1: not a tty
Those lines are logged 4 times every 10 seconds, and it just doesn't stop.
I have a server running with Linux Debian9
debian logs tty authentication
edited Dec 16 '18 at 3:42
Rui F Ribeiro
39.4k1479131
asked Jul 30 '17 at 23:21
CaracalCaracal
32
add a comment |
I was checking my auth.log file when I saw multiple lines like this one : Jul 30 22:34:08 <server-name> agetty[31666]: /dev/ttyS1: not a tty
Those lines are logged 4 times every 10 seconds, and it just doesn't stop.
I have a server running with Linux Debian9
debian logs tty authentication
edited Dec 16 '18 at 3:42
Rui F Ribeiro
39.4k1479131
asked Jul 30 '17 at 23:21
CaracalCaracal
32
add a comment |
I was checking my auth.log file when I saw multiple lines like this one : Jul 30 22:34:08 <server-name> agetty[31666]: /dev/ttyS1: not a tty
Those lines are logged 4 times every 10 seconds, and it just doesn't stop.
I have a server running with Linux Debian9
debian logs tty authentication
edited Dec 16 '18 at 3:42
Rui F Ribeiro
39.4k1479131
asked Jul 30 '17 at 23:21
CaracalCaracal
32
I was checking my auth.log file when I saw multiple lines like this one : Jul 30 22:34:08 <server-name> agetty[31666]: /dev/ttyS1: not a tty
Those lines are logged 4 times every 10 seconds, and it just doesn't stop.
I have a server running with Linux Debian9
debian logs tty authentication
debian logs tty authentication
edited Dec 16 '18 at 3:42
Rui F Ribeiro
39.4k1479131
asked Jul 30 '17 at 23:21
CaracalCaracal
32
edited Dec 16 '18 at 3:42
Rui F Ribeiro
39.4k1479131
asked Jul 30 '17 at 23:21
CaracalCaracal
32
edited Dec 16 '18 at 3:42
Rui F Ribeiro
39.4k1479131
edited Dec 16 '18 at 3:42
Rui F Ribeiro
39.4k1479131
edited Dec 16 '18 at 3:42
Rui F Ribeiro
39.4k1479131
39.4k1479131
asked Jul 30 '17 at 23:21
CaracalCaracal
32
asked Jul 30 '17 at 23:21
CaracalCaracal
32
asked Jul 30 '17 at 23:21
CaracalCaracal
32
32
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
The most likely cause on Debian 9 is that you have a console=ttyS1 setting on your kernel command line, which systemd-getty-generator is picking up, causing it to instantiate a serial-getty@ttyS1 service. This service runs Weitse Venema's agetty against the ttyS1 device. But you do not actually have a /dev/ttyS1 terminal character device on your server. The file (apparently) exists, but it is not a terminal character device file.
Further reading
- https://unix.stackexchange.com/a/248313/5132
- https://unix.stackexchange.com/a/316279/5132
- https://unix.stackexchange.com/a/194218/5132
answered Aug 1 '17 at 11:32
JdeBPJdeBP
33.6k469158
add a comment |
Try
systemctl stop getty@ttyS1
systemctl disable getty@ttyS1
answered Dec 30 '18 at 21:37
vladluvladlu
1
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
The most likely cause on Debian 9 is that you have a console=ttyS1 setting on your kernel command line, which systemd-getty-generator is picking up, causing it to instantiate a serial-getty@ttyS1 service. This service runs Weitse Venema's agetty against the ttyS1 device. But you do not actually have a /dev/ttyS1 terminal character device on your server. The file (apparently) exists, but it is not a terminal character device file.
Further reading
- https://unix.stackexchange.com/a/248313/5132
- https://unix.stackexchange.com/a/316279/5132
- https://unix.stackexchange.com/a/194218/5132
answered Aug 1 '17 at 11:32
JdeBPJdeBP
33.6k469158
add a comment |
The most likely cause on Debian 9 is that you have a console=ttyS1 setting on your kernel command line, which systemd-getty-generator is picking up, causing it to instantiate a serial-getty@ttyS1 service. This service runs Weitse Venema's agetty against the ttyS1 device. But you do not actually have a /dev/ttyS1 terminal character device on your server. The file (apparently) exists, but it is not a terminal character device file.
Further reading
- https://unix.stackexchange.com/a/248313/5132
- https://unix.stackexchange.com/a/316279/5132
- https://unix.stackexchange.com/a/194218/5132
answered Aug 1 '17 at 11:32
JdeBPJdeBP
33.6k469158
add a comment |
The most likely cause on Debian 9 is that you have a console=ttyS1 setting on your kernel command line, which systemd-getty-generator is picking up, causing it to instantiate a serial-getty@ttyS1 service. This service runs Weitse Venema's agetty against the ttyS1 device. But you do not actually have a /dev/ttyS1 terminal character device on your server. The file (apparently) exists, but it is not a terminal character device file.
Further reading
- https://unix.stackexchange.com/a/248313/5132
- https://unix.stackexchange.com/a/316279/5132
- https://unix.stackexchange.com/a/194218/5132
answered Aug 1 '17 at 11:32
JdeBPJdeBP
33.6k469158
The most likely cause on Debian 9 is that you have a console=ttyS1 setting on your kernel command line, which systemd-getty-generator is picking up, causing it to instantiate a serial-getty@ttyS1 service. This service runs Weitse Venema's agetty against the ttyS1 device. But you do not actually have a /dev/ttyS1 terminal character device on your server. The file (apparently) exists, but it is not a terminal character device file.
Further reading
- https://unix.stackexchange.com/a/248313/5132
- https://unix.stackexchange.com/a/316279/5132
- https://unix.stackexchange.com/a/194218/5132
answered Aug 1 '17 at 11:32
JdeBPJdeBP
33.6k469158
answered Aug 1 '17 at 11:32
JdeBPJdeBP
33.6k469158
answered Aug 1 '17 at 11:32
JdeBPJdeBP
33.6k469158
answered Aug 1 '17 at 11:32
JdeBPJdeBP
33.6k469158
33.6k469158
add a comment |
add a comment |
Try
systemctl stop getty@ttyS1
systemctl disable getty@ttyS1
answered Dec 30 '18 at 21:37
vladluvladlu
1
add a comment |
Try
systemctl stop getty@ttyS1
systemctl disable getty@ttyS1
answered Dec 30 '18 at 21:37
vladluvladlu
1
add a comment |
Try
systemctl stop getty@ttyS1
systemctl disable getty@ttyS1
answered Dec 30 '18 at 21:37
vladluvladlu
1
Try
systemctl stop getty@ttyS1
systemctl disable getty@ttyS1
answered Dec 30 '18 at 21:37
vladluvladlu
1
answered Dec 30 '18 at 21:37
vladluvladlu
1
answered Dec 30 '18 at 21:37
vladluvladlu
1
answered Dec 30 '18 at 21:37
vladluvladlu
1
1
add a comment |
add a comment |
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