Logins and logouts history on linux
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I am trying to look for the history of logins and logout on Unix systems: on Linux and OSX.
I found that there's the wtmp file which logs the history of the login and logouts. However, I am still confused about the TTY concept and how I can identify the user login and logout from this file.
For example on Linux when running the last command, I get the following:
omer@omer-VirtualBox:~$ last seconduser
secondus :1 :1 Tue Sep 25 13:50 still logged in
secondus :0 :0 Thu Sep 20 19:36 - 19:43 (00:06)
Now what does it means when I have multiple TTYs?
I saw on the mac that every time I open new terminal, it creates new tty and therefore new entry in the wtmp file. However, I am only interested about when the user logged in to the computer and when logged off, and not about every terminal open.
In Linux, I saw that it creates new TTY for each login and the max TTY I see is the max concurrent logins.
linux osx tty last
edited Sep 25 at 11:33
Goro
6,42552863
asked Sep 25 at 11:18
Omer Nizri
1
add a comment |Â
up vote
0
down vote
favorite
I am trying to look for the history of logins and logout on Unix systems: on Linux and OSX.
I found that there's the wtmp file which logs the history of the login and logouts. However, I am still confused about the TTY concept and how I can identify the user login and logout from this file.
For example on Linux when running the last command, I get the following:
omer@omer-VirtualBox:~$ last seconduser
secondus :1 :1 Tue Sep 25 13:50 still logged in
secondus :0 :0 Thu Sep 20 19:36 - 19:43 (00:06)
Now what does it means when I have multiple TTYs?
I saw on the mac that every time I open new terminal, it creates new tty and therefore new entry in the wtmp file. However, I am only interested about when the user logged in to the computer and when logged off, and not about every terminal open.
In Linux, I saw that it creates new TTY for each login and the max TTY I see is the max concurrent logins.
linux osx tty last
edited Sep 25 at 11:33
Goro
6,42552863
asked Sep 25 at 11:18
Omer Nizri
1
1
Related: unix.stackexchange.com/questions/468846/…
– Christopher
Sep 25 at 11:33
As is unix.stackexchange.com/questions/441717 .
– JdeBP
Sep 25 at 11:53
add a comment |Â
up vote
0
down vote
favorite
up vote
0
down vote
favorite
I am trying to look for the history of logins and logout on Unix systems: on Linux and OSX.
I found that there's the wtmp file which logs the history of the login and logouts. However, I am still confused about the TTY concept and how I can identify the user login and logout from this file.
For example on Linux when running the last command, I get the following:
omer@omer-VirtualBox:~$ last seconduser
secondus :1 :1 Tue Sep 25 13:50 still logged in
secondus :0 :0 Thu Sep 20 19:36 - 19:43 (00:06)
Now what does it means when I have multiple TTYs?
I saw on the mac that every time I open new terminal, it creates new tty and therefore new entry in the wtmp file. However, I am only interested about when the user logged in to the computer and when logged off, and not about every terminal open.
In Linux, I saw that it creates new TTY for each login and the max TTY I see is the max concurrent logins.
linux osx tty last
edited Sep 25 at 11:33
Goro
6,42552863
asked Sep 25 at 11:18
Omer Nizri
1
I am trying to look for the history of logins and logout on Unix systems: on Linux and OSX.
I found that there's the wtmp file which logs the history of the login and logouts. However, I am still confused about the TTY concept and how I can identify the user login and logout from this file.
For example on Linux when running the last command, I get the following:
omer@omer-VirtualBox:~$ last seconduser
secondus :1 :1 Tue Sep 25 13:50 still logged in
secondus :0 :0 Thu Sep 20 19:36 - 19:43 (00:06)
Now what does it means when I have multiple TTYs?
I saw on the mac that every time I open new terminal, it creates new tty and therefore new entry in the wtmp file. However, I am only interested about when the user logged in to the computer and when logged off, and not about every terminal open.
In Linux, I saw that it creates new TTY for each login and the max TTY I see is the max concurrent logins.
linux osx tty last
linux osx tty last
edited Sep 25 at 11:33
Goro
6,42552863
asked Sep 25 at 11:18
Omer Nizri
1
edited Sep 25 at 11:33
Goro
6,42552863
asked Sep 25 at 11:18
Omer Nizri
1
edited Sep 25 at 11:33
Goro
6,42552863
edited Sep 25 at 11:33
Goro
6,42552863
edited Sep 25 at 11:33
Goro
6,42552863
6,42552863
asked Sep 25 at 11:18
Omer Nizri
1
asked Sep 25 at 11:18
Omer Nizri
1
asked Sep 25 at 11:18
Omer Nizri
1
1
1
Related: unix.stackexchange.com/questions/468846/…
– Christopher
Sep 25 at 11:33
As is unix.stackexchange.com/questions/441717 .
– JdeBP
Sep 25 at 11:53
add a comment |Â
1
Related: unix.stackexchange.com/questions/468846/…
– Christopher
Sep 25 at 11:33
As is unix.stackexchange.com/questions/441717 .
– JdeBP
Sep 25 at 11:53
1
1
Related: unix.stackexchange.com/questions/468846/…
– Christopher
Sep 25 at 11:33
Related: unix.stackexchange.com/questions/468846/…
– Christopher
Sep 25 at 11:33
As is unix.stackexchange.com/questions/441717 .
– JdeBP
Sep 25 at 11:53
As is unix.stackexchange.com/questions/441717 .
– JdeBP
Sep 25 at 11:53
add a comment |Â
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Related: unix.stackexchange.com/questions/468846/…
– Christopher
Sep 25 at 11:33
As is unix.stackexchange.com/questions/441717 .
– JdeBP
Sep 25 at 11:53