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16%
Endlessh and tc tarpits slow down attackers
02.02.2021
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»
Archive
»
2021
»
Issue 61: Secur...
»
those exact packages to keep your system trim. The commands in Listing 7 start up the SSH daemon (sshd) and tell you that it is listening on port
22
. IPv
6
and IPv4 connections are open on the default port
16%
Linux device mapper writecache
30.01.2020
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»
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»
2020
»
Issue 55: AWS L...
»
=1): err= 0: pid=1634: Mon Oct 14
22
:18:59 2019 write: IOPS=118k, BW=463MiB/s (485
MB
/s)(10.0GiB/22123msec); 0 zone resets [ ... ] Run status group 0 (all jobs): WRITE: bw=463MiB/s (485
MB
/s), 463Mi
15%
Linux Writecache
19.11.2019
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volume "/dev/sdb" successfully created. Then, I verify that the volumes have been appropriately labeled: $ sudo pvs PV VG Fmt Attr PSize PFree /dev/nvme0n1 lvm2 --- <232.89g <232.89g /dev/sdb lvm2 --- <
6
15%
SSHFS for Shared Storage
15.09.2020
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HPC
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Articles
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need SSH active on both systems. Almost all firewalls are set up to allow port
22
access or have mapped port
22
to a different port that can accommodate SSHFS. All the other ports can be blocked
15%
Userspace secure filesystem
30.11.2020
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»
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»
2020
»
Issue 60: Secur...
»
need SSH active on both systems. Almost all firewalls are set up to allow port
22
access or have mapped port
22
to a different port that can accommodate SSHFS. All the other ports can be blocked
15%
Small-board computers
17.02.2015
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»
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»
2015
»
Issue 25: Safe...
»
5420 Octa Quad ARM Cortex-A15 (32KB instruction/32KB data/2
MB
L2) @1.8GHz, Quad-core ARM Cortex-A7 (32KB/32KB/512KB) @1.3GHz Mali T-628 MP
6
3GB LPDDR3e RAM (14.9GBps memory
15%
Error-correcting code memory keeps single-bit errors at bay
14.11.2013
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»
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»
2013
»
Issue 17: Cloud...
»
/devices/system/edac/mc/mc0/csrow0/size_
mb
8192 login2$ more /sys/devices/system/edac/mc/mc0/csrow0/ue_count 0 Some attribute files in /sys/devices/system/edac/mc/mc0/ can be very useful (Listing
6
). As with the csrow
15%
The practical benefits of network namespaces
15.08.2016
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2016
»
Issue 34: Softw...
»
DEFAULT group default qlen
1000
11 link/ether c
6
:27:2a:a8:06:ca brd ff:ff:ff:ff:ff:ff 12 8: veth1:
mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen
1000
13 link
15%
Getting data from AWS S3 via Python scripts
09.10.2017
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»
2017
»
Issue 41: Kuber...
»
boto3 3 4 s3 = boto3.resource('s3') 5 bucket = s3.Bucket('prosnapshot')
6
bucket.download_file('hello.txt', 'hello-down.txt') Figure 2
15%
Network analysis with the Bro Network Security Monitor
05.12.2014
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»
2014
»
Issue 24: Visua...
»
.519354 pkts=
6
kpps=0.0 kbytes=0 mbps=0.0 nic_pkts=16 nic_drops=0 u=2 t=2 i=0 o=0 nonip=2 1415510244.519597 pkts=
6
kpps=0.0 kbytes=0 mbps=0.0 nic_pkts=
22
nic_drops=0 u=2 t=2 i=0 o=0 nonip=2 1415510247
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