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Homework and Emergencies Homework & Coursework Questions Trouble with setting permissions and such Post 303045086 by AggressiveZebra on Wednesday 11th of March 2020 04:25:05 PM
Old 03-11-2020
Trouble with setting permissions and such-historyjpg
So, I was able to get further in the homework but now I am stuck with making the passwords be 16 characters long and ensuring that admin has general sudo access. I looked over the notes, the homework examples but I couldn't figure out how to do it for just the one person. Where should I look for this? This is also my code for the other parts.
 
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ATTACH(5)							File Formats Manual							 ATTACH(5)

NAME
attach, session, nop - messages to initiate activity SYNOPSIS
Tnop tag[2] Rnop tag[2] Tsession tag[2] chal[8] Rsession tag[2] chal[8] authid[28] authdom[48] Tattach tag[2] fid[2] uid[28] aname[28] ticket[72] auth[13] Rattach tag[2] fid[2] qid[8] rauth[13] DESCRIPTION
The nop request does nothing overt but may be used to synchronize the channel between two service hosts initially. The session request is used to initialize a connection between a client and a server. All outstanding I/O on the connection is aborted. The set of messages between session requests is called a session. The host's user name (authid) and its authentication domain (authdom) identify the key to be used when authenticating to this host. The exchanged challenges (chal) are used in the authentication algorithm. If authid is a null string no authentication is performed in this session. The tag should be NOTAG (value 0xFFFF) for a nop or session message. The attach message serves as a fresh introduction from a user on the client machine to a server. The message identifies the user (uid) and may select the file tree to access (aname). The ticket and auth arguments contains authorization data derived from the exchanged chal- lenges of the session message; see auth(6). As a result of the attach transaction, the client will have a connection to the root directory of the desired file tree, represented by fid. An error is returned if fid is already in use. The server's idea of the root of the file tree is represented by the returned qid. ENTRY POINTS
An attach transaction will be generated for kernel devices (see intro(3)) when a system call evaluates a file name beginning with Pipe(2) generates an attach on the kernel device pipe(3). The mount system call (see bind(2)) generates an attach messages to the remote file server. When the kernel boots, an attach is made to the root device, root(3), and then an attach is made to the requested file server machine. SEE ALSO
auth(6) ATTACH(5)

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