How does atp differ from tftp

SMB is a file-sharing protocol. It allows networked computers to transparently access files that reside on remote systems over a variety of networks. The SMB protocol defines a series of commands that pass information between computers. It is mainly used by Microsoft Windows-equipped computers. SMB works through a client-server approach, where a client makes specific requests and the server responds accordingly. One of the earliest uses of the Internet, long before Web browsing came along, was transferring files between computers.

The File Transfer Protocol FTP is used to connect to remote computers, list shared files, and either upload or download files between local and remote computers. FTP is a character-based command interface, although many FTP applications have graphical interfaces. FTP is still used for file transfer purposes, most commonly as a central FTP server with files available for download. Web browsers can make FTP requests to download programs from links selected on a Web page.

TFTP is used when a file transfer does not require an acknowledgment packet during file transfer. TFTP is used often in the router configuration. TFTP is also a command-line-based utility. TFTP does not provide user authentication like FTP and therefore the user must be logged on to the client and the files on the remote computer must be writable. TFTP is operated over port HTTP is often called the protocol of the Internet.

The following is a Web request:. Such communication is done several times throughout a single session to a Web site. HTTP operates on port Certificate-based transactions offer mutual authentication between the client and the server. Mutual authentication ensures the server of the client identity and ensures the client of the server identity. HTTPS, in addition to using certificate-based authentication, encrypts all data packets sent during a session.

To accomplish the transport, the SMTP server has its MX mail exchanger record in the DNS database that corresponds to the domain for which it is configured to receive mail. When equipped for two-way communication, mail clients are configured with the address of a POP3 server to receive mail and the address of an SMTP server to send mail.

The clients can configure server parameters in the properties sheets of the mail client, basing the choices on an FQDN or an IP address. POP3 is a protocol that involves both a server and a client. A POP3 server receives an e-mail message and holds it for the user. A POP3 client application periodically checks the mailbox on the server to download mail.

POP3 does not allow a client to send mail, only to receive it. IMAP4 is an alternate e-mail protocol. In this, an e-mail message is held on a server and then downloaded to an e-mail client application. Users can read their e-mail messages locally in their e-mail client application, but they can't send an e-mail message using IMAP4.

When users access e-mail messages via IMAP4, they have the option to view just the message header, including its title and the sender's name, before downloading the body of the message. Users can create, change, or delete folders on the server, as well as search for messages and delete them from the server. Telnet stands for Telecommunication Network.

It is a virtual terminal protocol. It allows a user to access a system remotely. In remote control, a session appears in which the user can manage the files on the remote computer, although the session appears to be functioning locally.

Telnet is an early version of a remote control application. Telnet is very basic; it offers solely character-based access to another computer. You can often use Telnet to manage equipment that lacks a monitor.

For example, most routers have Telnet enabled so that the administrator can log in and manage the router. Telnet also provides a quick check to make certain that network connectivity is functioning.

Because Telnet sits at the application layer, if it can connect to a remote host, you can be certain that network connectivity between the two hosts is operational, as well as all lower-layer protocols.

SSH is a program for logging in to and executing commands on a remote machine. It provides secure encrypted communications between two untrusted hosts over an insecure network. This process makes SSH impervious to Internet eavesdroppers who might otherwise steal account information. ICMP provides network diagnostic functions and error reporting. ICMP also provides a little network help for routers. When a router is being overloaded with route requests, the router sends a source quench message to all clients on the network, instructing them to slow their data requests to the router.

ARP uses a local broadcast From this I can see that vmlinux and vmlinuz in the firmware directory are old, and I presume that these represent the kernel loaded at boot time.

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