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15%
Get the best out of your bandwidth with tc
30.11.2025
Home »  Archive  »  2012  »  Issue 10: Traff...  » 
© Russell Shively, 123RF.com
# Install your qdisc 11 tc qdisc add dev $DEV root handle 1: cbq bandwidth $BAND avpkt $PKT allot 1514 cell 8 mpu 64 12 # Create your "master" class 13 tc class add dev $DEV parent 1:0 classid 1:1 cbq
15%
Creating an SFTP jail
30.11.2025
Home »  Archive  »  2011  »  Issue 3: Are yo...  » 
Juan Manuel Ordonez, 123RF.com
11 PasswordAuthentication yes 12 PermitEmptyPasswords no 13 PermitRootLogin no 14 PermitTunnel no 15 PermitUserEnvironment no 16 Port 2202 17 Protocol 2 18 StrictModes yes 19
15%
High availability clustering on a budget with KVM
30.11.2025
Home »  Archive  »  2010  »  Issue 0: Active...  » 
Yulia Saponova, 123RF.com
06 I_T nexus information: 07 LUN information: 08 LUN: 0 09 Type: controller 10 SCSI ID: deadbeaf1:0 11 SCSI SN: beaf10 12 Size: 0 13
15%
FreePBX phone system
28.07.2025
Home »  Archive  »  2025  »  Issue 88: 5 Net...  » 
Lead Image © Lofik, Fotolia.com
installation method – and the only one for which you can buy support from Sangoma – is to install FreePBX on Debian GNU/Linux 12 with a separate script. However, Sangoma itself only provides DEB packages
15%
Self-hosted Pritunl VPN server with MFA
26.03.2025
Home »  Archive  »  2025  »  Issue 86: Data...  » 
Lead Image © Darko Novakovic, fotolia.com
). Figure 2: Configuring a static IP address on a VPN server. Other prerequisites include setting a root password, running updates on the Ubuntu virtual machine, installing SSH, temporarily disabling
15%
Enforce secure workstation configurations
28.07.2025
Home »  Archive  »  2025  »  Issue 88: 5 Net...  » 
Photo by Barnabas Piper on Unsplash
group => 'root', 11 mode => '0644', 12 source => 'puppet:///modules/profile/systemd/puppet-sshd-watch.service', 13 notify => Exec['systemd-reload'], 14 } 15 16 file { $path_unit: 17
14%
Managing FOSS applications on AIX
27.05.2025
Home »  Archive  »  2025  »  Issue 87: Light...  » 
Lead Image © Nataliia Natykach, 123RF.com
flags [5]. As soon as DNF is installed, you should update root's .profile (or the .kshrc file, or both) to update the $PATH environment variable to include the location of the DNF (and other OSS
14%
Checking password complexity with John the Ripper
30.11.2025
Home »  Archive  »  2011  »  Issue 6: Perfor...  » 
Openwall's website. John the Ripper is a command-line utility that does not require administrative or root privileges to run against a password hash file. However, you will need administrative privileges
14%
Tracing applications with OProfile and SystemTap
30.11.2025
Home »  Archive  »  2010  »  Issue 1: System...  » 
© boing, Photocase.com
confirm that the kernel and kernel-debuginfo packages have the same version number: rpm -q kernel-PAE kernel-PAE-debuginfo oprofilekernel-PAE-2.6.32.10-90.fc12.i686 kernel-PAE-debuginfo-2.6.32.10-90.fc12.i
14%
Monitoring daemons with shell tools
30.11.2025
Home »  Archive  »  2010  »  Issue 1: System...  » 
© Shariff Che'Lah, 123RF.com
involved and restart a daemon, remove block files, or even reboot the whole system. Because you should avoid running this kind of script as root, you can instead set up special users and groups to own

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