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Strategies for routing voice calls around a firewall

30.11.2025

Home » Archive » 2010 » Issue 0: Active... »

: 09 Content-Type: application/sdp 10 Content-Length: 142 11 12 v=0 13 o=alice 53655765 2353687637 IN IP4 pc33.atlanta.com 14 s=- 15 t=0 0 16 c=IN IP4 pc33.atlanta.com 17

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Tracing applications with OProfile and SystemTap

30.11.2025

Home » Archive » 2010 » Issue 1: System... »

!\n");} 03 probe timer.sec(5) {exit();} 04 probe end {printf("Good-bye, world!\n");} 05 06 # stap helloword.stp 07 Hello, world! 08 <5 seconds later> 09 Good-bye, world! The "Hello World" example

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Beyond monitoring: Mathematical load simulation in Perl

30.11.2025

Home » Archive » 2011 » Issue 6: Perfor... »

Rate; 08 $ServerName = "Cashier"; 09 $Workload = "Customers"; 10 #------------ PDQ Model ------------ 11 # Initialize internal PDQ variable 12 pdq::Init("Grocery Store Checkout"); 13 # Modify the units used

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Virtualization via Zones

30.11.2025

Home » Archive » 2010 » Issue 0: Active... »

zonecfg:web1> add net 09 zonecfg:web1:net> set address=192.168.1.40/24 10 zonecfg:web1:net> set physical=e1000g1 11 zonecfg:web1:net> set defrouter=192.168.1.254 12 zonecfg:web1:net> end 13 zonecfg:web1

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Using Expect scripts to automate tasks

31.10.2025

Home » Archive » 2012 » Issue 12: NAS S... »

certain things. Two reasons a script 08 # might fail are: 09 # 10 # 1) timing - A surprising number of programs (rn, ksh, zsh, telnet, 11 # etc.) and devices discard or ignore keystrokes that arrive "too

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Enterprise communication with IRC

30.11.2025

Home » Archive » 2012 » Issue 10: Traff... »

the delay 06 * between autoconnecting to servers. 07 */ 08 connectfreq = 5 minutes; 09 10 /* max number: the amount of servers to autoconnect to */ 11 max_number = 1

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Archiving email and documents for small businesses

30.11.2025

Home » Archive » 2012 » Issue 08: FreeNAS »

to storage 08 mv archiv/cur/$i storage 09 10 # Create storage directory for email 11 mkdir storage/$pref.$i 12 13 # Extract attachments from mail 14 ripmime -i storage/$i -d storage/$pref.$i 15 16

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The Swiss Army knife of fault management

30.11.2025

Home » Archive » 2011 » Issue 5: Pen Te... »

07 08 09 10 11

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VMware Server 2.0 on recent Linux distributions

30.11.2025

Home » Archive » 2011 » Issue 3: Are yo... »

06 yum downgrade perl\* 07 rpm -e man-db 08 rpm -e pam_ldap --nodeps 09 yum downgrade nss_ldap 10 ... Fortunately, Yum introduced a downgrade option in version 3.2.27 that makes it easier to step

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Shell scripts: Equal rights for Unix derivatives and Linux

30.11.2025

Home » Archive » 2010 » Issue 2: Backup... »

-Specific PATH 01 PATH=/bin:/usr/bin:/usr/local/bin 02 case `uname -r` in 03 IRIX*) 04 PATH=$PATH:/etc/:/usr/bsd 05 ;; 06 HP-UX*) 07 PATH=$PATH:/sbin 08 ;; 09 ... 10 esac

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