Largest small system emulator – This entry weighs in at a magical 4043 bytes (8086 nibbles, 28,301 bits). It manages to implement most of the hardware in a 1980’s era IBM-PC using a few hundred fewer bits than the total number of transistors used to implement the original 8086 CPU. If you are using OS X, the included sc-ioccc.terminal configuration file will correctly display console applications that use ANSI graphics. [ via http://braindead.tumblr.com/post/72245783959 ]
These are my links for 24 lug 2013 through 2 ago 2013:
wg/wrk · GitHub – wrk is a modern HTTP benchmarking tool capable of generating significant load when run on a single multi-core CPU. It combines a multithreaded design with scalable event notification systems such as epoll and kqueue. [ via http://onethingwell.org/post/56882294128/wrk ]
Automate and manage systems installation with Cobbler – Cobbler simplifies system provisioning by centralizing the tasks that are involved in setting up and administering an installation server. This article discusses some of Cobbler's features, how to install it, and how to create a configuration suitable for automatically installing multiple client machines.
Cobbler – Linux install and update server – Cobbler is a Linux installation server that allows for rapid setup of network installation environments. It glues together and automates many associated Linux tasks so you do not have to hop between many various commands and applications when deploying new systems, and, in some cases, changing existing ones. Cobbler can help with provisioning, managing DNS and DHCP, package updates, power management, configuration management orchestration, and much more. (And you can integrate with chef or puppet)
Redhat I/O Scheduler Configuration in a Virtual Machine. – FATMIN – [...] However, because of the fact that ESX is its own built in elevator, the Linux kernel's elevator is not needed, and in fact can hurt disk performance. So its best to disable the elevator inside your linux VMs [...] Da controllare comunque dovrebbe andare anche su altre distro
RDP with NLA from Linux – Is there a way to connect to a Windows 2008 Remote Desktop Services with NLA from Linux? Yes! FreeRDP is a fork of Rdesktop. Rdesktop seems to have stopped developement, so a fork is very welcome. NLA is still not in the main release, but it isn't hard to check out a copy from GIT and compile the latest source yourself.
Packer – Packer is a tool for creating identical machine images for multiple platforms from a single source configuration. [ via http://onethingwell.org/post/55173824648/packer ]
IBM AIX and Microsoft Active Directory integration with Kerberos and LDAP – LDAP works well for storing and retrieving user attributes for AIX users, but using LDAP for the authentication piece still requires the user to have an AIX password and an AD password. Kerberos allows AIX to authenticate the user against the user's Microsoft Windows® password, using native AD protocols.
* Go through a large list of servers.
* SSH them and determine whether the server is AIX.
* If so, it will go through all disks, returning their type.
* It will do all of this completely in parallel in batch at 25 sub-processes at a time.
Recovering a lost partition table with a VMFS volume | vInfrastructure Blog – Vi possono essere diversi motivi che portano alla perdita della tabella delle partizioni o alla sua corruzione. Nel caso di datastore VMFS le possibili cause sono: resignature da un altro sistema (ad esempio il backup server, nel caso funzioni in SAN mode), un errore umano (basta eseguire, su dischi condivisi, da vSphere Client un Datastore / Delete da un ESXi non ancora collegato al vCenter Server), o anche a causa di qualche problema lato storage (mi è capitato proprio questo caso di recente su uno storage entry level)[...]
(Mi è capitato, ho seguito la kb di vmware e ne sono uscito. Comunque sto sudando ancora adesso…)
DataFart – DataFart lets you easily graph data from the command line.