Private VLANs allow splitting a regular VLAN into multiple "subdomains" to provide isolation between hosts at layer 2. The domains are isolated broadcast domains that require layer 3 forwarding to communicate. Primary, isolated, and community ports are defined for the sub-VLANs. Primary VLANs deliver frames downstream, isolated VLANs carry frames upstream, and community VLANs allow communication within the same group and to promiscuous ports. The configuration binds VLANs into a private VLAN domain, maps host ports to secondary VLANs, and maps a promiscuous port to all secondary VLANs to allow inter-subnet communication.
The document discusses EIGRP functionality on Cisco 3850 switches with an IP Base license. It explains that EIGRP is restricted to stub connections only, meaning it can only run as a stub. This prevents routes learned by EIGRP from being advertised upstream from the 3850 switch. However, a route leak map can override this behavior and allow routes to be advertised after all.
Private VLANs allow splitting a regular VLAN into multiple "subdomains" to provide isolation between hosts at layer 2. The domains are isolated broadcast domains that require layer 3 forwarding to communicate. Primary, isolated, and community ports are defined for the sub-VLANs. Primary VLANs deliver frames downstream, isolated VLANs carry frames upstream, and community VLANs allow communication within the same group and to promiscuous ports. The configuration binds VLANs into a private VLAN domain, maps host ports to secondary VLANs, and maps a promiscuous port to all secondary VLANs to allow inter-subnet communication.
The document discusses EIGRP functionality on Cisco 3850 switches with an IP Base license. It explains that EIGRP is restricted to stub connections only, meaning it can only run as a stub. This prevents routes learned by EIGRP from being advertised upstream from the 3850 switch. However, a route leak map can override this behavior and allow routes to be advertised after all.
O prezentare (pentru ediția 2015 a Școlii de vară "Informatica la Castel" de la Macea, Arad – www.informaticalacastel.ro) descriind o serie de instrumente Web disponibile liber și bazate pe diversele tehnologii aliniate curentului "cloud computing" pentru editarea, testarea, rularea și partajarea de cod-sursă scris în mai multe limbaje de programare.
Pentru alte detalii, a se vizita siturile aferente materiilor predate de Sabin Buraga: http://profs.info.uaic.ro/~busaco/teach/
4G networks were developed to address the limitations of 3G networks in supporting high-capacity multimedia services and applications with lower costs. 4G uses an all-IP based Evolved Packet Core network and advanced radio technologies like OFDM, multiple antennas, and link adaptation to provide seamless high-speed wireless broadband connectivity and end-to-end quality of service. Key improvements include an evolved packet core, all-IP networking, seamless handovers between networks, and the end of circuit-switched voice calls.
O prezentare (pentru ediția 2015 a Școlii de vară "Informatica la Castel" de la Macea, Arad – www.informaticalacastel.ro) descriind o serie de instrumente Web disponibile liber și bazate pe diversele tehnologii aliniate curentului "cloud computing" pentru editarea, testarea, rularea și partajarea de cod-sursă scris în mai multe limbaje de programare.
Pentru alte detalii, a se vizita siturile aferente materiilor predate de Sabin Buraga: http://profs.info.uaic.ro/~busaco/teach/
4G networks were developed to address the limitations of 3G networks in supporting high-capacity multimedia services and applications with lower costs. 4G uses an all-IP based Evolved Packet Core network and advanced radio technologies like OFDM, multiple antennas, and link adaptation to provide seamless high-speed wireless broadband connectivity and end-to-end quality of service. Key improvements include an evolved packet core, all-IP networking, seamless handovers between networks, and the end of circuit-switched voice calls.
This document provides an overview of Bacula, an open source network backup solution. It describes the main Bacula components including the Bacula Director, Console, File, Storage, Catalog, and Monitor services. It also discusses how Bacula allows for centralized backup/restore, scheduling, job prioritization, security features, restoration capabilities, storage device support, operating system support, and graphical user interfaces. The document concludes by announcing $4.5 million in funding for Bacula Systems to deliver enterprise-grade open source backup and restoration technologies to large data centers.
This document discusses CUBRID, an open source relational database management system (RDBMS). It provides information on the following:
- CUBRID was launched globally in 2008 and is optimized for web services and applications with high traffic. New features are developed in Romania.
- CUBRID uses a 3-tier architecture for high performance and scalability with various interfaces like ODBC, JDBC, PHP and tools for easy management.
- CUBRID provides high availability with automatic node failure detection and failover between master/slave brokers and database servers.
This document discusses three ways to configure Linux bonding in the kernel: 1) Using modprobe and alias commands, 2) Using sysfs directly by writing to bonding_masters and mode files, and 3) Adding slaves to an interface using sysfs without ifenslave. It notes the benefits of the sysfs method are handling multiple interfaces, reconfiguring without reboot, and avoiding problems with modprobe.
UDPCast is software that uses multicast over UDP to copy the contents of a computer's hard drive (seed host) to other computers on a network. It allows administrators to easily install and maintain the same software and operating system configuration on multiple computers, such as in a school computer lab. The imaging process involves preparing the hosts, installing software on the seed host, and using sender and receiver processes to transfer the contents over the network from the seed host to the other hosts using multicast UDP packets.
Org-Mode is an Emacs mode for note taking, task management, and plain text organization. It allows you to create documents with hierarchical structure, tags, timestamps, and status keywords. The presentation demonstrated Org-Mode and provided instructions for installing and configuring it, with additional resources for learning more.
24. Mai multe informaţii: http://jabber.org http://xmpp.org http://en.wikipedia.org/wiki/Jabber pe http://wiki.lug.ro Prezentare: Radu Zoran <radu@r2dev.ro> da, e (și) o adresă de Jabber ;)