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  • [x] Creation time: Last year
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  • Article (Print) (109)
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10%
Shell scripts: Equal rights for Unix derivatives and Linux
30.11.2025
Home »  Archive  »  2010  »  Issue 2: Backup...  » 
Mike Flippo, 123RF
OS*) 15 PING="ping" 16 PING2="" 17 ;; 18 esac 19 ... 20 21 for i in server1 server2 server3 workstation1 workstation2 22 do 23 $PING $i $PING2 > /dev/null 24 if [ "$?" != "0
10%
Galera Cluster for MySQL
30.11.2025
Home »  Archive  »  2012  »  Issue 10: Traff...  » 
© Noel Powell, fotolia.com
to install the Pen load balancer, and Listing 12 shows a query to Pen. Listing 11 Installing and Starting Pen wget http://siag.nu/pub/pen/pen-0.18.0.tar.gz tar xf /download/pen-0.18.0.tar
10%
pfSense firewall and router distribution
30.11.2025
Home »  Archive  »  2012  »  Issue 07: Xen v...  » 
© Sergey Mironov, 123RF.com
the Downloads page to a mirror, you might be overwhelmed by the list of innumerable files (Figure 1). Normally, however, all you need is the approximately 100MB ISO image, pfSense-2.0-RELEASE-i386.iso.gz, from
10%
Network backup with Burp, Obnam, and Backshift
30.11.2025
Home »  Archive  »  2012  »  Issue 10: Traff...  » 
© Sergey Peterman, 123RF.com
can exclude files of a certain size (e.g., those of 0MB). The Burp configuration language also provides two size parameters: min_file_size and max_file_size; for example: min_file_size = 0 Mb
10%
OpenVPN with e-tokens in large-scale environments
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
© sTan, fotolia.com
/openvpn/keys/CA.crt 08 cert /etc/openvpn/keys/server.crt 09 key /etc/openvpn/keys/server.key 10 tls-auth /etc/openvpn/keys/tls-auth.key 11 12 server 192.168.1.0 255.255.255.0 13 14 keepalive 10 60 15 comp-lzo 16 17
10%
Using the Expect scripting environment
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
© Ivan Mikhaylov, 123RF.com
tcsh\r" 06 expect "#" 07 send "cp .ssh/authorized_keys ~root/.ssh\r" 08 expect "#" 09 send "cd /etc/ssh; cp sshd_config{,.0}\r" 10 expect "#" 11 send "cat sshd_config.0 | sed -e 's
10%
Business continuity for small to medium-sized enterprises
30.11.2025
Home »  Archive  »  2012  »  Issue 08: FreeNAS  » 
© Andrea, Fotolia.com
combinations are supported: ShadowProtect 4.0.1: Oracle VirtualBox 3.1.0--3.2.6 ShadowProtect 4.0.5: Oracle VirtualBox 3.1.0--3.2.12 ShadowProtect 4.1: Oracle VirtualBox 3.1.0--4.0.4 Shadow
10%
Professional backup solutions compared
30.11.2025
Home »  Archive  »  2010  »  Issue 2: Backup...  » 
Kamil Macniak, 123RF
) with 12 Serial ATA disks, a 320 UW SCSI controller for the host connection, and 512MB cache. I configured various disk groups and logical volumes on this powerful hardware and exported them to the backup
10%
An IP-based load balancing solution
30.11.2025
Home »  CloudAge  »  Articles  » 
arsgera, 123RF
virtual webs.test.com { 15 active = 1 16 address = 192.168.1.250 eth0:0 17 vip_nmask = 255.255.255.0 18 port = 80 19 send = "GET / HTTP/1.0\r\n\r\n" 20 expect = "HTTP" 21
10%
Script utilities in depth: grep, awk, and sed
30.11.2025
Home »  Archive  »  2011  »  Issue 4: Secure...  » 
© jirkaejc, 123RF.com
that it locates: oops::000:100::/:/bin/sh This password file entry allows someone to log in as the root-equivalent user oops without a password: grep '.*:.*:00*:' /etc/passwd | awk -F: 'BEGIN {n=0}; $1

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