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43%
A simple approach to the OCFS2 cluster filesystem
30.11.2025
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© Kheng Ho Toh, 123RF.com
to take into account when designing your storage. The number of subdirectories in a directory is restricted to 32,000. OCFS2 stores data in clusters of between 4 and 1,024Kb. Because the number of cluster
43%
Script utilities in depth: grep, awk, and sed
30.11.2025
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© jirkaejc, 123RF.com
that it locates: oops::000:100::/:/bin/sh This password file entry allows someone to log in as the root-equivalent user oops without a password: grep '.*:.*:00*:' /etc/passwd | awk -F: 'BEGIN {n=0}; $1
43%
Warding off the rise of VoIP spam
30.11.2025
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Izaokas Sapiro, 123RF.com
of 480Kbps, which calls for a 512Kbps line. Assuming a line rental of EUR 30 (US$ 35-40), the basic rate for the marketer would be 0.004 cents per call. In other words, 5,000 VoIP calls costs the same
43%
Active Directory overview
30.11.2025
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© Maksym Yemelyanov, 123RF.com
of 5,000 members because the replication mechanism wasn't powerful enough for use in a large environment. The reason for the size restriction was that a Windows 2000 domain controller always replicated
43%
Building more efficient database applications with a graph database
30.11.2025
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© Jakub Krechowicz, 123RF.com
(Name = 'Peter', Age = 52) INSERT INTO Friend VALUES (Name = 'Paula', Age = 34) LINK Friend (Name = 'Peter') TO Friend(Name = 'Paula') VIA knows If you want to access the database from one
43%
Introduction to OpenMP programming
31.10.2025
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© Frank Rohde, 123RF.com
first ran the serial version of the code in Listing 1 with a problem size of 1,000 (i.e., m=1000). Notice that it finished in just a little over 44.5 seconds on a single core. I can tell it only used
43%
The latest developments in Open-Xchange 6.20
30.11.2025
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© Robert Byron, Fotolia.com
&1, for example, will be familiar with the software under the name of 1&1 Webmail and 1&1 MailXchange. On top of the 2.5 million 1&1 customers, another 1.4 million users with Host Europe, and 40,000 root and v
43%
Using Expect scripts to automate tasks
31.10.2025
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© Kheng Ho Toh, 123RF.com
-- "PASSWORD\r" 49 expect -exact "\r 50 Linux aspen 2.6.32-43-server #97-Ubuntu SMP Wed Sep 5 16:56:41 UTC 2012 x86_64 GNU/Linux\r 51 Ubuntu 10.04.4 LTS\r 52 \r 53 Welcome to the Ubuntu Server!\r 54
43%
Remote desktop based on HTML5
31.10.2025
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© Phanlop Boonsongsomnukool, 123RF.com
quickly view the password hash at the command line with the md5sum utility: # echo -n | md5sum -t 319f4d26e3c536b5dd871bb2c52e3178 - Next, add this hash value instead of the password
43%
Creating an SFTP jail
30.11.2025
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Juan Manuel Ordonez, 123RF.com
18:52 jail ls -alR /export/home/jail ... and the permissions should be root:root, 755 all the way down the directory structure. Next, you should verify that all the correct files were created

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