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31%
Protect Your Servers with Nmap
23.07.2012
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Articles
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.13.134.52): Not shown: 994 filtered ports PORT STATE SERVICE VERSION
22
/tcp open ssh OpenSSH 4.3 (protocol
2.0
) 25/tcp closed smtp 53/tcp open domain ISC BIND 9
31%
Give your servers the once over with Nmap
31.10.2025
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»
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»
2012
»
Issue 11: Cloud...
»
.nmap.org (64.13.134.52): Not shown: 994 filtered ports PORT STATE SERVICE VERSION
22
/tcp open ssh OpenSSH 4.3 (protocol
2.0
) 25/tcp closed smtp
31%
Predicting Drive Doom
20.10.2013
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,000,592,982,016 bytes [3.
00
TB] Sector Sizes: 512 bytes logical, 4096 bytes physical Device is: In smartctl database [for details use: -P show] ATA Version is: 8 ATA Standard is: ACS-2 (unknown minor revision code: 0
x
001
31%
Real-World HPC: Setting Up an HPC Cluster
04.11.2011
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-server 192.168.1.2; filename "/pxelinux.0"; host node01 { hardware ethernet
00:11:22
:33:44:a0; fixed-address 192.168.1.101; } host node01-bmc { hardware ethernet
00:11:22
:33:44:8d; fixed-address 192
31%
Warewulf 4
13.12.2022
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Packages: (1/6): dhcp-common-4.3.6-47.el8.noarch.rpm 902 kB/s | 206 kB
00:00
(2/6): dhcp-libs-4.3.6-47.el8.
x
86_64.rpm 3.1 MB/s | 147 kB
00:00
(3
31%
Distributed storage with Sheepdog
07.10.2014
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2014
»
Issue 23: 10 Ti...
»
Sheepdog Server in Action # ps -ef|egrep '([c]orosyn|[s]heep)' root 491 1 0 13:04 ?
00:00
:30 corosync root 581 1 0 1:13 PM ?
00:00
:03 sheep -p 7000 /var
31%
VTP for VLAN management
04.10.2018
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2018
»
Issue 47: Findi...
»
:/ 1 -rw- 4414921 Aug
22
2017
00:00
:02 c2960-lanbase-mz.122-25.FX.bin 2 -rw- 736 Aug
22
2017 10:53:02 vlan.dat 64016384 bytes total (59600727 bytes free) If you
31%
A closer look at hard drives
18.07.2013
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2013
»
Issue 15: What’...
»
: 156301488
20
Logical Sector size: 512 bytes 21 Physical Sector size: 512 bytes
22
device size with M = 1024*1024: 76319 MBytes 23
31%
Small-board computers
17.02.2015
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2015
»
Issue 25: Safe...
»
: Tegra
X
1: 25.6GBps memory bandwidth HDMI
2.0
and HDCP
2.2
10W power Peak performance: 1,024GFLOPS with FP16; 512GFLOPS with FP32 ARM Cortex CPUs: Quad-core 64-bit ARM Cortex-A57
31%
Go testing frameworks
05.08.2024
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2024
»
Issue 82: Sover...
»
.Exit(1) 15 } 16 17 run(os.Args[1]) 18 } 19
20
func row() { 21 for i := 0; i < size; i++ {
22
for j := 0; j < size; j++ { 23 array[i][j]++ 24 } 25 } 26 } 27 28
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