One of the characteristics of effective malware is that it can run on a device stealthily in privileged mode. Malware is software created to modify a device's behavior for the benefit of a malicious third party (attacker). Customers running Cisco IOS Software can refer to Cisco IOS Software Integrity Assurance. This document applies only to Cisco IOS XE Software and to no other Cisco operating systems. Additionally, the document presents common best practices that can aid in protecting against attempts to inject malicious software (also referred to as malware) in a Cisco IOS XE device. This document analyzes injection of malicious software in Cisco IOS XE Software and describes ways to verify that the software on a Cisco router, both in device storage and in running memory, has not been modified. Use Centralized and Comprehensive Logging Use TACACS+ Authorization to Restrict Commands Use Authentication, Authorization, and Accounting Maintain Cisco IOS XE Image File Integrityĭeploy Digitally Signed Cisco IOS XE Images Verify MD5 Validation Feature for the Text RegionĬhecking That IOSd Call Stacks Are Within the Text Section BoundariesĬhecking Platform Shell Access Logs and Syslog Verifying Authenticity for Digitally Signed ImagesĬisco IOSd Run-Time Memory Integrity VerificationĬompute the MD5 Checksum of a Known-Good Text Section Using the Message Digest 5 File Validation Feature To remove an item that was added using Autofill, click On My Device, select an item (or items), press the Delete key, then click Delete.Architecture Notes and Differences with Cisco IOS Software Select how much disk space to reserve: Drag the slider to adjust.Įach time you use Autofill, iTunes adds different songs to your device. If you deselect “Choose items randomly,” songs are added in the order in which they appear in your library or selected playlist. Randomly choose songs to add: Select “Choose items randomly.” If you want items with higher ratings chosen more often than those with lower ratings, also select “Choose higher rated items more often.” If you deselect the option, your current music is kept and Autofill fills the rest of your device with new songs. Replace all music on your device: Select “Replace all items when Autofilling.” In the iTunes app on your PC, click the Device button near the top left of the iTunes window.Ĭlick Music in the sidebar on the left, below On My Device.Ĭlick the Autofill From pop-up menu at the bottom of the Music pane, then choose which songs you want to sync.Ĭlick Settings, then do any of the following to adjust Autofill settings: To turn on Wi-Fi syncing, see Sync iTunes content on PC with devices on Wi-Fi. You can connect your device using a USB or USB-C cable or a Wi-Fi connection. See Keep items from being synced automatically. ![]() To use Autofill, you must turn off automatic syncing for music and video. If you get tired of hearing the same music on your device, you can have iTunes fill it with a random selection of songs using Autofill. Move your iTunes library to another computer. ![]()
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