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grml 2011.12  

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APieceof the Pie  

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Fixed partitions on a Linux system can be created easily using tools such as fdisk, but the assignments tend to be wrong or the partitions too small at the worst possible moment. LVM requires slightly more effort at install time, but it soon pays dividends.

Mobile Manager  

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Using a tablet as a portable management console makes sense but could make you too accessible.

Simultaneous  

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Cl uster filesystems such as GFS2 and OCFS2 allow many clients simultaneous access to a storage device. Along with DRBD and Pacemaker, this offers a low-budget option for creating a redundant service – but you need to watch out for a couple of pitfalls.

Sniff Test  

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Tcpdump is a general-purpose packet sniffer and incident response tool that should be in your toolshed.

2026

To the Rescue  

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Knoppix boots from the DVD drive and comes with a collection of powerful troubleshooting tools. Knoppix creator Klaus Knopper counts down his favorite rescue utilities.

Remote Control  

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Keep track of your job when you're not in the office.

Through the Gate  

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Conventional VoIP telephony doesn't provide for the complications of a firewall. The STUN protocol is the standard fix, but sometimes STUN just isn't enough.

Inspector  

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You need to lock doors to keep criminals out. Intelligent tools such as port and security scanners reveal potential vulnerabilities and help you keep the computers on your network safe from attackers.

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