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Copy SSH RSA key to a server
Once an SSH key has been created, the ssh-copy-id command can be used to install it as an authorized key on the server. Once the key has been authorized for SSH, it grants access to the server without a password. Use a command like the following to copy SSH k...
Creating an SSH Key Pair for User Authentication
ssh-keygen generates, manages and converts authentication keys for ssh. ssh-keygen can create RSA keys for use by SSH protocol version 1 and RSA or DSA keys for use by SSH protocol version 2. The type of key to be generated is specified with the -t option. If ...
Pinging from a base user - ping: socket: Operation not permitted
The error message ping: socktype: SOCK_RAW followed by ping: socket: Operation not permitted indicates that the user does not have the necessary permissions to use the ping command. The error message ping: => missing cap_net_raw+p capability or setuid? sugges...
Filesystem permissions
File permissions in Linux are coded symbolically (as letters) r - read w - write x - execute And Numerically: 4 - read 2 - write 1 - execute dir permissions Octal del rename create files dir list read files contents write file conten...