Abstract: A communication device may include: a memory configured to store management information in which, for each of a plurality of OIDs of a MIB, the OID and a setting value are associated with each other; and a controller, wherein the controller may be configured to: receive a setting command which conforms to TCP; write the setting value included in the setting command to the management information in association with the OID included in the setting command; and send a response command which conforms to the TCP. In a case where the setting command including a first OID and a first setting value is received, the controller may be configured to: write the first setting value to the management information in association with the first OID after the response command has been sent, and send the response command before the first setting value is written to the management information.

Abstract: A communication device may include: a communication interface for communication with a server on the Internet; a memory storing log information that indicates a list of logs of events occurring in the communication device; and a controller. The controller may be configured to: execute a predetermined communication with a specific server on the Internet via the communication interface; and execute a transmitting process for transmitting, to an external device different from the communication device, a log included in the log information stored in the memory, wherein in the transmitting process, a first-type log indicating a log of a first-type event is transmitted to the external device, in the transmitting process, a second-type log indicating a log of a second-type event is not transmitted to the external device, and the second-type event is the predetermined communication that is repeatedly executed.

Abstract: A first communication device may include: a database configured to, for each of a plurality of OIDs of MIB, store the OM in association with a setting value; and a controller, wherein the controller is configured to: receive a writing request from a second communication device by using a second communication scheme different from a first communication scheme including SNMP, the writing request including an OM and a setting value, and the second communication scheme including at least one of encryption of communication data and authentication of a sender of the writing request; and in a case where the writing request is received from the second communication device, write the setting value included in the writing request in the database in association with the OM included in the writing request.

Abstract: A communication device may include: a memory configured to store management information in which, for each of a plurality of OIDs of a MIB, the OID and a setting value are associated with each other; and a controller, wherein the controller may be configured to: receive a setting command which conforms to TCP; write the setting value included in the setting command to the management information in association with the OID included in the setting command; and send a response command which conforms to the TCP. In a case where the setting command including a first OID and a first setting value is received, the controller may be configured to: write the first setting value to the management information in association with the first OID after the response command has been sent, and send the response command before the first setting value is written to the management information.

Abstract: A communication device may include: a database storing, for each of a plurality of OIDs of MIB, a value in association with the OID; and a controller configured to execute access to a value in the database according to an access request, wherein in a case where the access request includes a first OID and the user of a terminal device is not authenticated as a specific user, the controller executes access to the first value, and in a case where the access request includes a second OID and the user of the terminal device is not authenticated as the specific user, the access to the second value is not executed.

Abstract: A controller of a device is configured to receive, via a communication interface, device identification information indicating the device and connection information for connecting to a target server from an intermediary server; connect, via the communication interface, to the target server by using the connection information; after connecting to the target server, perform a particular process including communication with the target server, the particular process including: receiving, via the communication interface, authentication information from the target server; verifying whether the authentication information is authentic; in response to determining that the authentication information is authentic and that a particular condition is satisfied, performing a post-authentication process without performing an update process of updating the authentication information; and in response to determining that the authentication information is authentic and that the particular condition is not satisfied, performing t

Abstract: A function executing device may cause a first output unit to output first output information including location information of a server that is configured to operate according to a predetermined authentication scheme. The first output information may be acquired by a terminal device configured to operate according to the predetermined authentication scheme. The terminal device may be configured to access the server, receive first verification information, create signature information by encrypting the first verification information using a private key in a case where first authentication for a target user succeeds, and send the signature information to the server. The server may be configured to decrypt the signature information using a public key, and send an execution instruction to the function executing device in a case where the first verification information is acquired by decrypting the signature information. The function executing device may execute a specific function.

Abstract: An image processing device may, in a case where an obtainment request is received from a terminal device, send to the terminal device one or more pieces of setting data stored in a setting storage area related to an image processing, in a case where a first type of changing request requesting changing of stored contents in the setting storage area is received from the terminal device, change the stored contents in the setting storage area according to the first type of changing request. In a case where a second type of changing request is received from the terminal device, changing according to the second type of changing request may be restricted, the second type of changing request being for requesting changing of the stored contents in the setting storage area.

Abstract: An image processing device may, in a case where an obtainment request is received from a terminal device, send to the terminal device one or more pieces of setting data stored in a setting storage area related to an image processing, in a case where a first type of changing request requesting changing of stored contents in the setting storage area is received from the terminal device, change the stored contents in the setting storage area according to the first type of changing request. In a case where a second type of changing request is received from the terminal device, changing according to the second type of changing request may be restricted, the second type of changing request being for requesting changing of the stored contents in the setting storage area.