프로그램 사용/ssh scp sftp
ssh -t
구차니
2025. 9. 8. 12:20
ssh를 통해 iperf3 -s 옵션으로 실행 했는데
결과 내용이 ssh 터미널을 통해 나오지 않아서 3 ai들에게 물어보니
cluade가 알려줌. 그 와중에 gemini는 도움이 안되고 chatGPT는 파일로 떨구라고 알려줌.. (야이 -_-)
아무튼 -t 라는 옵션을 주면 잘 나온다. 신기하네..
| -T Disable pseudo-terminal allocation. -t Force pseudo-terminal allocation. This can be used to execute arbitrary screen-based programs on a remote machine, which can be very useful, e.g. when implementing menu services. Multiple -t options force tty allocation, even if ssh has no local tty. |
iperf3 가 취소되어 종료되고 나서 한번에 iperf3 서버쪽 결과가 나옴. 일종의 버퍼링 상태인가..
| $ ssh localhost "iperf3 -s" | |
| $ iperf3 -c localhost Connecting to host localhost, port 5201 [ 5] local 127.0.0.1 port 43416 connected to 127.0.0.1 port 5201 [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-1.00 sec 5.94 GBytes 51.0 Gbits/sec 0 1.31 MBytes [ 5] 1.00-2.00 sec 6.09 GBytes 52.3 Gbits/sec 0 1.31 MBytes [ 5] 2.00-3.00 sec 5.79 GBytes 49.7 Gbits/sec 0 1.31 MBytes ^C[ 5] 3.00-3.37 sec 2.26 GBytes 51.8 Gbits/sec 0 1.31 MBytes |
|
| iperf3: the client has terminated ----------------------------------------------------------- Server listening on 5201 ----------------------------------------------------------- Accepted connection from 127.0.0.1, port 43412 [ 5] local 127.0.0.1 port 5201 connected to 127.0.0.1 port 43416 [ ID] Interval Transfer Bitrate [ 5] 0.00-1.00 sec 5.72 GBytes 49.1 Gbits/sec [ 5] 1.00-2.00 sec 6.09 GBytes 52.3 Gbits/sec [ 5] 2.00-3.00 sec 5.81 GBytes 49.9 Gbits/sec [ 5] 2.00-3.00 sec 5.81 GBytes 49.9 Gbits/sec - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate [ 5] 0.00-3.00 sec 20.1 GBytes 57.5 Gbits/sec receiver |
- - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-3.37 sec 20.1 GBytes 51.1 Gbits/sec 0 sender [ 5] 0.00-3.37 sec 0.00 Bytes 0.00 bits/sec receiver iperf3: interrupt - the client has terminated |
그 와중에 iperf3 -s 를 실행한 ssh를 종료하면 PPID 1번으로 붙어 버린다. 야이 -_-
마치 -D / --daemon 옵션을 주고 한 것 같아지냐
| $ ps -ef | grep iperf3 falinux 811482 1 2 12:12 ? 00:00:02 iperf3 -s |
딱이네.. 머지? 터미널이 없으면 자동으로 daemon 모드로 작동하나?
| $ iperf3 -D -s $ ps -ef | grep iperf3 user 811482 1 1 12:12 ? 00:00:02 iperf3 -s |
아무튼 대망의(?) -t 옵션. 잘 된다.
| $ ssh -t localhost "iperf3 -s" ----------------------------------------------------------- Server listening on 5201 ----------------------------------------------------------- |
|
| Accepted connection from 127.0.0.1, port 60822 [ 5] local 127.0.0.1 port 5201 connected to 127.0.0.1 port 60830 [ ID] Interval Transfer Bitrate [ 5] 0.00-1.00 sec 5.48 GBytes 47.0 Gbits/sec [ ID] Interval Transfer Bitrate [ 5] 0.00-1.00 sec 5.48 GBytes 47.0 Gbits/sec - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate [ 5] 0.00-1.00 sec 7.60 GBytes 65.3 Gbits/sec receiver iperf3: the client has terminated ----------------------------------------------------------- Server listening on 5201 ----------------------------------------------------------- |
$ iperf3 -c localhost Connecting to host localhost, port 5201 [ 5] local 127.0.0.1 port 60830 connected to 127.0.0.1 port 5201 [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-1.00 sec 5.70 GBytes 49.0 Gbits/sec 0 1.25 MBytes ^C[ 5] 1.00-1.32 sec 1.90 GBytes 50.5 Gbits/sec 0 1.25 MBytes - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-1.32 sec 7.60 GBytes 49.4 Gbits/sec 0 sender [ 5] 0.00-1.32 sec 0.00 Bytes 0.00 bits/sec receiver iperf3: interrupt - the client has terminated |
[링크 : https://stackoverflow.com/questions/42505339/why-use-t-with-ssh]