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When you first log in, the Cisco NX-OS software places you in EXEC mode. This section describes command modes in the Cisco NX-OS CLI. As long as you provide theĬorrect password, the device logs you in. Letters regardless of how the username was defined. Through its console port, you can enter a login username in all uppercase However, when you are connected to the device

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Lesser General Public License (LGPL) Version 2.1. The GNU General Public License (GPL) version 2.0 or the GNU Certain components of this software are licensed under Owned by other third parties and used and distributed under The copyrights to certain works contained in this software are Window of your console port or remote workstation as shown in the followingĬisco Nexus Operating System (NX-OS) SoftwareĬopyright (c) 2002-2013, Cisco Systems, Inc. Successfully accessed the device, the CLI prompt displays in the terminal This chapter contains the following sections:

Using the System-Defined Timestamp Variable.

Enabling or Disabling the CLI Confirmation Prompts.

Searching and Filtering from the -More- Prompt.

Searching and Filtering show Command Output.

Configuring Command Aliases for a User Session.

Identifying Your Location in the Command Hierarchy.

Subinterface Configuration Command Mode.

For more information, see Getting the Logon SID in C++. The logon SID is used in run-as logons as well it is the SID used to protect the per-session object namespace. To prevent remote users or users on a different terminal services session from accessing a named pipe, use the logon SID on the DACL for the pipe. For more information, see Access-Control Lists (ACLs) and SACL Access Right. You can request the ACCESS_SYSTEM_SECURITY access right to a named pipe object if you want to read or write the object's SACL. To avoid this problem, use the individual rights instead of using FILE_GENERIC_WRITE. Because FILE_APPEND_DATA and FILE_CREATE_PIPE_INSTANCE have the same definition, so FILE_GENERIC_WRITE enables permission to create the pipe. Open modeįILE_GENERIC_READ, FILE_GENERIC_WRITE, and SYNCHRONIZEįILE_GENERIC_READ access for a named pipe combines the rights to read data from the pipe, read pipe attributes, read extended attributes, and read the pipe's DACL.įILE_GENERIC_WRITE access for a named pipe combines the rights to write data to the pipe, append data to it, write pipe attributes, write extended attributes, and read the pipe's DACL. The following are the access rights for each open mode. It also has GENERIC_READ, GENERIC_WRITE, or both, depending on the open mode of the pipe. The handle returned by the CreateNamedPipe function always has SYNCHRONIZE access. Similarly, when a client calls the CreateFile or CallNamedPipe function to connect to the client end of a named pipe, the system performs an access check before granting access to the client.

In addition to the requested access rights, the DACL must allow the calling thread FILE_CREATE_PIPE_INSTANCE access to the named pipe. The access check compares the thread's access token and the requested access rights against the DACL in the named pipe's security descriptor. When a thread calls CreateNamedPipe to open a handle to the server end of an existing named pipe, the system performs an access check before returning the handle. To change the security descriptor of a named pipe, call the SetSecurityInfo function. To retrieve a named pipe's security descriptor, call the GetSecurityInfo function. They also grant read access to members of the Everyone group and the anonymous account.

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The ACLs in the default security descriptor for a named pipe grant full control to the LocalSystem account, administrators, and the creator owner. If you specify NULL, the named pipe gets a default security descriptor. The security descriptor controls access to both client and server ends of the named pipe. You can specify a security descriptor for a named pipe when you call the CreateNamedPipe function. For more information about security, see Access-Control Model.

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Windows security enables you to control access to named pipes.

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