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High availability for RESTful services with OpenStack

09.01.2013

Home » Archive » 2013 » Issue 18: New W... »

Lead Image © Ying Feng Johansson, 123RF.com

02 log 127.0.0.1 local0 03 maxconn 4000 04 daemon 05 uid 99 06 gid 99 07 08 defaults 09 log global 10 mode http 11 option httplog 12 option dontlognull 13 timeout server 5s

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A ptrace-based tracing mechanism for syscalls

06.10.2022

Home » Archive » 2022 » Issue 71: Kuber... »

_init_remote(&unw_cursor, g_unw_as, unw_ctx)); 05 06 /* - Search - */ 07 bool found_stack_entry = false; 08 do { 09 unw_word_t ip = 0; 10 unw_get_reg(&unw_cursor, UNW_REG_IP, &ip); 11 12 Dwfl_Module* module = dwfl

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Moving HPC to the cloud

31.10.2025

Home » Archive » 2012 » Issue 11: Cloud... »

public cloud to another public cloud. In terms of cost, Univa costs are additive to the AWS instance charges and range from US$ 0.02 up to a max of US$ 0.08/core per hour. Remember that these costs

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Assigning Privileges with sudo and PolicyKit

22.01.2013

Home » Articles »

. As an alternative to the hostname, you can also specify the IP address. For an address range, just specify the subnet: klaus 192.168.2.0/255.255.255.0=(ALL)NOPASSWD:/usr/bin/apt-get upgrade In this case, the user

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ASP.NET web development framework

30.11.2020

Home » Archive » 2020 » Issue 60: Secur... »

Options.ListenAnyIP(4711, 08 listenOptions => { 09 listenOptions.UseHttps("cert.pfx", ""); 10 } 11 ); 12 }) 13 .UseStaticWebAssets() 14 .Use

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Live migration of virtual machines with KVM

13.06.2016

Home » Archive » 2016 » Issue 33: IPv6... »

to allow the no_root_squash option. A line for this purpose in /etc/exports would look like this: /nfs 192.168.1.0/ 24(rw,no_root_squash) It allows all the computers on the 192.168.1.0 network to mount

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Microsoft Exchange replacement

20.06.2022

Home » Archive » 2022 » Issue 69: Terra... »

yellow 07 continue 08 } 09 Write-Host "" 10 11 [...] 12 13 Write-Host "Removing all MailboxExportRequests." -fore green 14 Get-MailboxExportRequest | Remove-MailboxExportRequest -Confirm

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Moving HPC to the Cloud

19.10.2012

Home » HPC » Articles »

charges and range from US$ 0.02 up to a max of US$ 0.08/core·hour. Remember that these costs provide a “ready-to-run” HPC cloud, whereas buying AWS instances requires the user to configure the cluster

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Reading email in the browser with Horde

30.11.2025

Home » Archive » 2012 » Issue 08: FreeNAS »

: channel://pear.horde.org/webmail-4.0.6 The directory Horde uses to deliver existing static content in an efficient way is /var/www/webmail/static/. The web server needs write permissions for this directory

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Citrix XenServer 6.2 goes open source

14.11.2013

Home » Archive » 2013 » Issue 17: Cloud... »

Lead Image © George Tsartsianidis, 123RF.com

types of CPU, a PowerShell SDK revised for robustness, and optimizations that prevent DOM 0 from being taken down by excessive logging. Citrix also now uses a more recent version of the Xen hypervisor (v4