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32%
Desktop Blades (of Glory)
06.05.2024
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»
HPC
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Articles
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(different from Raspberry Pi), and
2.5
or 10 Gigabit Ethernet (GbE). The card is 60
x
69.6
mm
(about 2.4
x
2.84 inches), which makes it a little taller than a credit card and a bit over 1U (Figure 4
31%
Intruder detection with tcpdump
30.11.2025
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»
Archive
»
2012
»
Issue 07: Xen v...
»
port Capture packets coming from or going to a port or a range of ports. # tcpdump port 21# tcpdump port
20-25
AND (&& or and)OR (|| or or)EXCEPT (! or not) Combine
31%
When I/O workloads don't perform
02.08.2021
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»
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»
2021
»
Issue 64: Bare...
»
100 --- Old_age Offline - 0 199 UDMA_CRC_Error_Count 0
x
003e 200 200 --- Old_age Always - 0 240 Head_Flying_Hours 0
x
0000 100
253
--- Old
31%
When I/O Workloads Don’t Perform
12.05.2021
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»
HPC
»
Articles
»
100 100 --- Old_age Offline - 0 199 UDMA_CRC_Error_Count 0
x
003e 200 200 --- Old_age Always - 0 240 Head_Flying_Hours 0
x
0000 100
253
--- Old
31%
SMART storage device monitoring
29.09.2020
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»
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»
2020
»
Issue 59: Custo...
»
, use the -P show option (Listing 2). Listing 2 Device Details # smartctl -P show /dev/sda smartctl 7.2 2020-07-11 r5076 [
x
86_64-linux-5.4.0-42-generic] (CircleCI) Copyright (C) 2002-
20
31%
We compare four popular NAS appliances
05.12.2014
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»
Archive
»
2014
»
Issue 24: Visua...
»
Yes Filesystems (Internal HDs) ext4 ext4 ext3/ext4/XFS Btrfs USB 3.0 2
x
2
x
1
x
2
x
USB
2.0
2
x
1
x
4
x
30%
Creating an SFTP jail
30.11.2025
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»
Archive
»
2011
»
Issue 3: Are yo...
»
SyslogFacility AUTH
20
TCPKeepAlive yes 21 UseDNS no 22 UsePrivilegeSeparation yes 23 Subsystem sftp /usr/local/libexec/sftp-server 24 Match Group sftponly
25
ChrootDirectory /export
29%
Network analysis with the Bro Network Security Monitor
05.12.2014
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»
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»
2014
»
Issue 24: Visua...
»
var/opt/bro/logs Subdirectories ls -l /var/opt/bro/logs/ total 244 drwxr-xr-
x
. 2 root root 4096 Oct
20
00:00 2014-10-19 drwxr-xr-
x
. 2 root root 12288 Oct 21 00:00 2014-10-
20
drwxr-xr-
x
. 2 root root
29%
OpenSMTPD makes mail server configuration easy
08.10.2015
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2015
»
Issue 29: Rescu...
»
effort. Multiple Flavors OpenSMTPD is at home not just on its native OpenBSD, but on Linux (with binary packages for Gentoo, Slackware, Debian, and Arch) and other BSDs, including Mac OS
X
. The package
29%
Fundamentals of I/O benchmarking
11.04.2016
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2016
»
Issue 32: Measu...
»
B blocks:
25.3
IO/s, 50.6 MiB/s (424.9 Mbit/s) As the block size continues to grow, the transfer rate becomes increasingly important; a track change is only possible after fully reading the current
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