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15 Cards in this Set
- Front
- Back
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define: Host
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Another word for a computer system
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Host Name
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a unique name given to a computer system by the system administrator to distinguish it from other hosts on the network. The command <uname n> displays the assigned host name
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IP address (internet address)
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a number that represents the host address and the network address, for example 192.134.117.25. A hosts IP address identifies where a host is on the internet, which allows network traffic to be directed to that host. This software address is placed in the /etc/inet/hosts file
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Ethernet Address
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A hosts unique hardware address. A number displayed as 12 hexadecimal digits. For example, 08:00:20:1C:54:7E. This address is stored in NVRAM (non-volatile random access memory)
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Server
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A host that provides one of more services to hosts on a network
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Client
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A host that uses services provided by a server.file server shares files with clients. print server shares printer or printers with clients. application server provides applications to clients
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Login name (user name)
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must be unique for each user. 2 to 8 characters, first character must be a letter. at least one character must be a lowercase letter. no spaces or underscores
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UID
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User Identification Number. must be unique. 100 60000
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GID
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Group Identification Number. 100 60000
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useradd
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adds a new user (-u UID)
(-g group)(-G secondary groups)(-d home directory)(-m creates home dir if does not exist)(-s pathname of shell, if not defined defaults to /bin/sh)(-c comment)(-o allows UID to be duplicated)(-e expire date on account)(-f days inactive before account locked)(-k skel dir if other than default of /etc/skel |
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usermod
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modifies a curent users acount. same options as useradd with addition of(-l new user name)(-m moves users home dir to location specified with d)
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userdel
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deletes a current user. (-r removes users home directory and all files in it)
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groupadd
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adds a new group (-g GID)(-o allows GID to be duplicated)
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groupmod
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modifies an existing group. same options as groupadd with addition of: (-n new group name)
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groupdel
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deletes an existing group
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