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15%
Easy configuration management with Puppet
18.07.2013
Home »  Archive  »  2013  »  Issue 15: What’...  » 
Warangkana Bunyarittongchai, 123RF
=> Service['apache'] 17 } 18 19 file { '/var/www/index.html': 20 ensure => present, 21 source => 'puppet:///modules/myproject/web/index.html', 22 owner => 'root', 23 group => 'root', 24
15%
Gathering Data on Environment Modules
10.09.2012
Home »  HPC  »  Articles  » 
to logfiles, and it’s pretty simple to use: [laytonjb@test1 ~]$ logger "This is a test" ... [root@test1 ~]# tail -n 2 /var/log/messages Aug 22 15:54:47 test1 avahi-daemon[1398]: Invalid query packet. Aug 22 17
15%
The top three SSH tricks
14.08.2017
Home »  Archive  »  2017  »  Issue 40: Lean...  » 
Lead Image © Fotoflash,Fotolia.com
environment. The parameters to change are located in /etc/ssh/sshd_config. The first security change is to deny root user logins by finding the line PermitRootLogin Yes and changing the Yes to No. If you
15%
Backup and replicate VMs on VMware ESXi
13.06.2016
Home »  Archive  »  2016  »  Issue 33: IPv6...  » 
Lead Image © urbanhearts, fotolia.com
want to back up is recommended. Then, use the following command chmod 0700 xsibackup* to unpack the archive and make it available to the root user only. Target Host and Schedules After preparing
15%
ZFS on Linux helps if the ZFS FUSE service refuses to work
07.10.2014
Home »  Archive  »  2014  »  Issue 23: 10 Ti...  » 
Lead Image © Luis Louro, 123RF.com
-EY 09 config: 10 11 zroot ONLINE 12 ata-ST380215AS_9QZ68Z7S ONLINE Not Under Root Caution is advised here: Without specifying any options, the zpool
15%
Generate VM Images with virt-builder
15.04.2014
Home »  Articles  » 
 
, and systemd. Drawing on more tools from the libguestfs package, virt-builder modifies the template to suit the administrator’s needs – for example, setting the root password, configuring the network, and so on
15%
Virt-builder generates VM images in a flash
20.03.2014
Home »  Archive  »  2014  »  Issue 19: Perim...  » 
Lead Image © Petris, fotolia.com
, the basic daemons, and systemd. Drawing on more tools from the libguestfs package, virt-builder modifies the template to suit the administrator's needs – for example, setting the root password, configuring
15%
Goodbye virtual machines, hello container machines
07.04.2022
Home »  Archive  »  2022  »  Issue 68: Autom...  » 
Photo by Erik Odiin on Unsplash
Mappings: - containerPort: 22 - containerPort: 2181 - containerPort: 8080 - containerPort: 9092 - containerPort: 38080 - containerPort: 52812 - containerPort: 58080 privileged: true
15%
Getting a free TLS certificate from Let's Encrypt
13.06.2016
Home »  Archive  »  2016  »  Issue 33: IPv6...  » 
Lead Image © Stuart Miles, 123RF.com
for $i" 19 20 #If certs do not exist yet 21 FILE="$LECROOT/$i/cert.pem" 22 if [ ! -f "$FILE" ] 23 then 24 echo "$FILE does not exists, so lets get certificates" 25 cd /root/letsencrypt 26
15%
Endlessh and tc tarpits slow down attackers
02.02.2021
Home »  Archive  »  2021  »  Issue 61: Secur...  » 
Lead Image © Yewkeo, 123RF.com
, so you can continue. Listing 7 Starting sshd $ systemctl start sshd $ lsof -i :22 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME sshd 5122 root 3u IPv4 62113 0t0

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