a way to ‘sync’ block devices in ‘rsync’ style. Useful to implement backup of xen VMs based on LVM volumes. Also see http://serverfault.com/questions/27397/sync-lvm-snapshots-to-backup-server
Posted in backup, device, for:collidr, Linux, lvm, rsync, server, storage, sysadmin, tools, xen | Comments Off | permalink
An excellent [attempt of ] description of the GSM cell phones hardware, design, architecture and implementation
Posted in architecture, engineering, for:collidr, gsm, hardware, mobile, phone, programming, protocol, reference, reverse | Comments Off | permalink
“secret of ChatRoulette”. Describes details of RTMFP protocol, that Flash Player (from v.10.1 and above ) uses for media delivery. Protocol is closed/proprietary, encrypted, UDP-based, uses “forward” servers to establish direct session between th…
Posted in adove, design, engineering, flash, for:collidr, network, p2p, protocol, RTM | Comments Off | permalink
Notes (exert) from Joanna Rutkowska recent paper comparing KVN and XEN architectures from security and design standpoint
Posted in architecture, for:collidr, kernel, kvm, Linux, Security, system, virtualization, xen | Comments Off | permalink
creative pictures of Spb, B/W
Posted in art, for:collidr, for:Inulia, photo, photography, spb | Comments Off | permalink
websites that provides a lot of useful info, like RBL (Relay Black Lists ), DNS, AS, BGP, etc
Posted in AS, bgp, dns, for:collidr, internet, network, route, Security, sysadmin, tool, tools, whois | Comments Off | permalink
Article covers SCALE8x presentation from Ronald Minnich /Scandia Nat. Labs/ about issues involved running large scale networks [ >10M nodes ] . Article contains a lot of useful links, recommended reading.
Posted in dht, distributed, for:collidr, infrastructure, Linux, network, research, Security, virtualization | Comments Off | permalink
opensource web-conferencing software, something like GoToMeeting, allows sharing voice, video, presentation and desktop
Posted in conferecing, for:collidr, gotomeeting, opensource, sharing, software | Comments Off | permalink
open source client-management and invoicing software
Posted in client, for:collidr, invoicing, management, opensource, php, software, time, web | Comments Off | permalink
all sorts of system and software engineering info from Twitter. Also see http://twitter.com/about/opensource
Posted in blog, development, engineering, for:collidr, high_load, performance, sysadmin, twitter, web2.0 | Comments Off | permalink
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Konstantin Antselovich (c) 2004-2011
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