https://community.hpe.com/t5/operating-system-hp-ux/difference-between-pts-0-and-tty-0/m-p/3114056#M897030 I am a somewhat newbie, and have a question that needs to be cleared up.<BR />When I do a who on my HPUX server I get to logins one being myself on tty/01 and another of someone else on pts/01. Now I know he had to telnet to machine as well. What are the difference between the to.<BR /><BR />It could have been he logged in using rlogin... Sat, 08 Nov 2003 11:54:20 GMT Ratzie 2003-11-08T11:54:20Z https://community.hpe.com/t5/operating-system-hp-ux/difference-between-pts-0-and-tty-0/m-p/3114056#M897030 I am a somewhat newbie, and have a question that needs to be cleared up.<BR />When I do a who on my HPUX server I get to logins one being myself on tty/01 and another of someone else on pts/01. Now I know he had to telnet to machine as well. What are the difference between the to.<BR /><BR />It could have been he logged in using rlogin... Sat, 08 Nov 2003 11:54:20 GMT https://community.hpe.com/t5/operating-system-hp-ux/difference-between-pts-0-and-tty-0/m-p/3114056#M897030 Ratzie 2003-11-08T11:54:20Z https://community.hpe.com/t5/operating-system-hp-ux/difference-between-pts-0-and-tty-0/m-p/3114057#M897031 'tty' are data comm serial based devices and somewhat obsolete since LAN connectivity. Prior to LAN connections everybody used data comm.<BR /> <BR />'pty' are 'streams' based 'pseudo' connection devices used with LAN's. <BR /> <BR />So its as simple as data comm or LAN connections where 'tty' is the name of the device.<BR /> <BR />telnet = pts/NN (number is in hex)<BR />terminal/modem = tty Sat, 08 Nov 2003 12:31:11 GMT https://community.hpe.com/t5/operating-system-hp-ux/difference-between-pts-0-and-tty-0/m-p/3114057#M897031 Michael Steele_2 2003-11-08T12:31:11Z