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  1. Cea mai ok explicatie de pana acum pe care am gasit-o:
    3 points
  2. De departe, cel mai meserias: http://x.co/ZeusLinux
    2 points
  3. la o cautare dupa "WPA2" in baza de date a patentelor, gasim US9491621B2 punctul 13, Claims, pag.8/8 [...] 13. A method for communicating data in a wireless communications network, comprising: transmitting a beacon to a station, the beacon comprising a Wi-Fi Protected Access II pre-shared key (WPA2-PSK) authentication type; receiving an authentication request from the station, the authentication request comprising the WPA2-PSK authentication type, a first secure attribute exchange (SAE) information element, and a station nonce; transmitting an authentication response to the station, the authentication response comprising the WPA2-PSK authentication type, the first SAE information element, and an access point nonce; generating a pairwise master key (PMK) identifier based on the first SAE information element; receiving an association request from the station after generation of the PMK identifier, the association request comprising a key confirmation derived from the PMK identifier and a second SAE information element; and transmitting an association response to the station in response to receiving the association request, the association response comprising the key confirmation and the second SAE information element. [...] vulnerabilitatea Krack pare a fi rezultatul specificatiilor cit si a implementarii. @yoyois protocolul “four-way handshake” folosit, functioneaza cam asa : (AP catre client) stabilim o cheie doar pentru aceasta sesiune. iti trimit un set de date unic, pe sesiune, pe care sa-l folosesti tu. (client catre AP) OK, ia de aici un set de date unic, pe sesiune, pachet de date generate de mine, pe care sa le folosesti tu. in acest moment, ambele parti isi "amesteca" impreuna parolele de retea Wi-Fi ( Pre-Shared Key sau PSK) si cele doua pachete de date transmise genereaza o cheie unica pe sesiune. astfel, se evita utilizarea directa a PSK in datele tansmise criptat in reteaua Wi-Fi, si se asigura cheia unica pe sesiune. (AP catre client) confirma acordul asupra setului de date ca fiind suficient pentru a se construi cheia unica. (Client catre AP) confirma si el acordul sau. nu vad cum ar putea fi extras Pre-Shared Key-ul.
    2 points
  4. OFF: Daca tot o dai in limbi straine, macar scrie corect, fara greseli gramaticale si de punctuatie. ON: Ceva detalii la "solutia" 1? Referitor la #3, poate ca e ok doar pentru o retea mica (home/small business), nu si in alt context. Cat despre #4, ai auzit de 0day-uri?
    2 points
  5. Internetworking with TCP/IP Volume One (6th Edition)
    2 points
  6. See you in November at DefCamp 2017 Want to experience a conference that offers outstanding content infused with a truly cyber security experience? For two days (November 9th-10th) Bucharest will become once again the capital of information security in Central & Eastern Europe hosting at DefCamp more than 1,300 experts, passionate and companies interested to learn the “what” and “how” in terms of keeping information & infrastructures safe. Now it’s getting really close: this year's conference is only months away, and that means very early bird tickets are now available. Register Now at DefCamp 2017 (50% Off) What can you expect from the 2017 edition? 2 days full of cyber (in)security topics, GDPR, cyber warfare, ransomware, malware, social engineering, offensive & defensive security measurements 3 stages hosting over 35 international speakers and almost 50 hours of presentations Hacking Village hosting more than 10 competitions where you can test your skills or see how your technology stands 1,300 attendees with a background in cyber security, information technology, development, management or students eager to learn How to get involved? Speaker: Call for Papers & Speakers is available here. Volunteer: Be part of DefCamp #8 team and see behind the scene the challenges an event like this can have. Partner: Are you searching opportunities for your company? Become our partner! Hacking Village: Do you have a great idea for a hacking or for a cyber security contest? Consider applying at the Hacking Village Call for Contests. Attendee: Register at DefCamp 2017 right now and you will benefit of very early bird discounts. Register Now at DefCamp 2017 (50% Off) Use the following code to get an extra 10% discount of the Very Early Bird Tickets by June 27th. This is the best price you will get for 2017 edition. Code: DEFCAMP_2017_VEB_10 Website: https://def.camp/
    1 point
  7. A suite of utilities simplilfying linux networking stack performance troubleshooting and tuning. https://pypi.python.org/pypi/netutils-linux netutils-linux It's a useful utils to simplify Linux network troubleshooting and performance tuning, developed in order to help Carbon Reductor techsupport and automate the whole linux performance tuning process out of box (ok, except the best RSS layout detection with multiple network devices). These utils may be useful for datacenters and internet service providers with heavy network workload (you probably wouldn't see an effect at your desktop computer). It's now in production usage with 300+ deployment and save us a lot of time with hardware and software settings debugging. Inspired by packagecloud's blog post. Installation You'll need pip. pip install netutils-linux Utils Monitoring All these top-like utils don't require root priveledges or sudo usage. So you can install and use them as non-priveledged user if you care about security. pip install --user netutils-linux Brief explanation about highlighting colors for CPU and device groups: green and red are for NUMA-nodes, blue and yellow for CPU sockets. Screenshots are taken from different hosts with different hardware. network-top Most useful util in this repo that includes almost all linux network stack performance metrics and allow to monitor interrupts, soft interrupts, network processing statistic for devices and CPUs. Based on following files: /proc/interrupts (vectors with small amount of irqs/second are hidden by default) /proc/net/softnet_stat - packet distribution and errors/squeeze rate between CPUs. /proc/softirqs (only NET_RX and NET_TX values). /sys/class/net/<NET_DEVICE>/statistic/<METRIC> files (you can specify units, mbits are default) There are also separate utils if you want to look at only specific metrics: irqtop, softirq-top, softnet-stat-top, link-rate. snmptop Basic /proc/net/smmp file watcher. Tuning rss-ladder Automatically set smp_affinity_list for IRQ of NIC rx/tx queues that usually work on CPU0 out of the box). Based on lscpu's output. It also supports double/quad ladder in case of multiprocessor systems (but you better explicitly specify queue count == core per socket as NIC's driver's param). Example output: # rss-ladder eth1 0 - distributing interrupts of eth1 (-TxRx-) on socket 0 - eth1: irq 67 eth1-TxRx-0 -> 0 - eth1: irq 68 eth1-TxRx-1 -> 1 - eth1: irq 69 eth1-TxRx-2 -> 2 - eth1: irq 70 eth1-TxRx-3 -> 3 - eth1: irq 71 eth1-TxRx-4 -> 8 - eth1: irq 72 eth1-TxRx-5 -> 9 - eth1: irq 73 eth1-TxRx-6 -> 10 - eth1: irq 74 eth1-TxRx-7 -> 11 autorps Enables RPS on all available CPUs of NUMA node local for the NIC for all NIC's rx queues. It may be good for small servers with cheap network cards. You also can explicitely pass --cpus or --cpu-mask. Example output: # autorps eth0 Using mask 'fc0' for eth0-rx-0. maximize-cpu-freq Sets every CPU scaling governor mode to performance and set max scaling value for min scaling value. So you will be able to use all power of your processor (useful for latency sensible systems). rx-buffers-increase rx-buffers-increase utils, that finds and sets compromise-value between avoiding dropped/missing pkts and keeping a latency low. Example output: # ethtool -g eth1 Ring parameters for eth1: Pre-set maximums: RX: 4096 ... Current hardware settings: RX: 256 # rx-buffers-increase eth1 run: ethtool -G eth1 rx 2048 # rx-buffers-increase eth1 eth1's rx ring buffer already has fine size. # ethtool -g eth1 Ring parameters for eth1: Pre-set maximums: RX: 4096 ... Current hardware settings: RX: 2048 Hardware and its configuration rating server-info Much alike lshw but designed for network processing role of server. # server-info show cpu: info: Architecture: x86_64 BogoMIPS: 6799.9899999999998 Byte Order: Little Endian CPU MHz: 3399.998 CPU family: 6 CPU op-mode(s): 32-bit, 64-bit CPU(s): 2 Core(s) per socket: 1 Hypervisor vendor: KVM L1d cache: 32K L1i cache: 32K L2 cache: 4096K Model: 13 Model name: QEMU Virtual CPU version (cpu64-rhel6) NUMA node(s): 1 NUMA node0 CPU(s): 0,1 On-line CPU(s) list: 0,1 Socket(s): 2 Stepping: 3 Thread(s) per core: 1 Vendor ID: GenuineIntel Virtualization type: full layout: '0': '0' '1': '1' disk: sr0: model: QEMU DVD-ROM vda: model: null size: 64424509440 type: HDD memory: MemFree: 158932 MemTotal: 1922096 SwapFree: 4128764 SwapTotal: 4128764 net: eth1: buffers: cur: 2048 max: 4096 conf: ip: 10.144.63.1/24 vlan: true driver: driver: e1000 version: 7.3.21-k8-NAPI queues: own: [] rx: [] rxtx: [] shared: - virtio1, eth0, eth1 tx: [] unknown: [] It also can rate hardware and its features in range of 1..10. # server-info rate cpu: BogoMIPS: 7 CPU MHz: 7 CPU(s): 1 Core(s) per socket: 1 L3 cache: 1 Socket(s): 10 Thread(s) per core: 10 Vendor ID: 10 disk: sr0: size: 1 type: 2 vda: size: 1 type: 1 memory: MemTotal: 1 SwapTotal: 10 net: eth1: buffers: cur: 5 max: 10 driver: 1 queues: 1 system: Hypervisor vendor: 1 Virtualization type: 1 Download: netutils-linux-master.zip or: git clone https://github.com/strizhechenko/netutils-linux.git Source: https://github.com/strizhechenko/netutils-linux
    1 point
  8. Avand in vedere ca se apropie, pinned!
    1 point
  9. Sysadmins and developers rejoice! WSL is now a fully fledged part of Windows 10, starting with the latest Fall Creators Update. terested in running Linux on Windows 10 with Windows Subsystem for Linux (WSL), but nervous about it being both a beta and only available in Windows 10 developer mode? Your worries are over. In the Windows 10 Fall Creators Update (WinFCU) WSL has graduated to being a Windows 10 feature that can be run by any user. Tested for over a year, WSL on WinFCU is bringing many new features to this combination of the Linux Bash shell and Windows. Besides WSL no longer being a beta or requiring users to be in developer mode, the new features include: Install Linux distros via the Windows Store WSL now runs multiple Linux distros WSL comes to Windows Server & Microsoft Azure VMs WSL now supports USB/serial comms Miscellaneous fixes and improvements Besides Ubuntu, the new WSL-supported Linux distros are SUSE's community openSUSE and its corporate SUSE Linux Enterprise Server (SLES). Fedora and other distros will arrive in the store shortly. If you've previously installed WS, your existing "legacy" Ubuntu instance will continue to work, but it's deprecated. To continue to receive support you should replace it with a new store-delivered instance. Without this, you won't receive Canonical or Microsoft support. To keep your old files, you should tar them and copy them to your Windows file system; for example: `/mnt/c/temp/backups` and then copy them back to your new instance. In addition, instead of jumping through hoops to install Linux on Windows, you can install one or more -- yes, you can have multiple distros on a single Windows 10 system -- Linux distros from the Windows Store. To do this, you must first enable the WSL feature in the "Turn Windows Features on or off" dialog and reboot. No, WSL is not active by default and yes, you must reboot. After rebooting you simply search for "Linux" in the Windows Store, pick a version to install, hit install, and in a few minutes you're good to go. If you already have a Bash instance installed on WSL, you can start afresh with the lxrun /uninstall command. You run this command from the command prompt or PowerShell. Besides being able to install multiple Linux distributions, you can simultaneously run one or more Linux distros. Each distro runs independently of one another. These are neither virtual machines (VMs) nor containers, and that means they need their usual system resources. I, for example, would only want them on systems with at least an additional 2GBs per instance of running WSL. WSL itself requires only minimal system resources. Rich Turner, Microsoft's senior program manager of WSL and Windows Console, wrote: "We don't list [RAM requirements] because, frankly, we don't have any of note! If you don't install WSL, we add no RAM footprint. If you do enable WSL, there's a tiny 850KB driver loaded briefly, and then it shuts down until you start a Linux instance. At that point, you load /init which launches /bin/bash. This causes the 850KB driver to load, and creates Pico Processes for init and bash. So, basically, WSL's RAM requirements are pretty much whatever the RAM is that you need to run each Linux binary, plus around 1MB of working set in total." The Linux distros can also access Windows' host filesystem, networking stack, etc. That means you should be cautious about changing files on the Windows filesystem. Why would you run multiple distros at once? Microsoft points out: You can now install Linux distros right from the Windows Store. Linux developers will be pleased to find that USB serial comms are now supported. This enables your shell scripts and apps to talk to serial ports. WSL also now supports mounting of USB-attached storage devices and network shares. That's the good news, The bad news is it only supports the NT filesystem IO infrastructure. In other words it only supports FAT/FAT32/NTFS formatted storage devices. Want *nix file systems? Microsoft encourages you to upvote and/or comment on the associated UserVoice ask. Digging deeper into the new improvements, under the hood WSL on WinFCU now includes: Improved TCP socket options inc. IP_OPTIONS, IP_ADD_MEMBERSHIP, IP_MULTICAST, etc /etc/hosts will now inherit entries from the Windows hosts file xattr related syscalls support Fixed several filesystem features and capabilities Improved PTRACE support Improved FUTEX support chsh, which enables you to change shells, now works. This enables you to use your favorite shell directly. Shell startup file other than ".bashrc" will now execute. The following syscalls were added for the first time during the FCU cycle: Prlimit64 getxattr, setxattr, listxattr, removexattr As expected, WSL is also on its way to Windows Server and to Microsoft Azure Windows VM instances. This will make WSL even more useful for sysadmins. All these improvements have made it even easier for developers and system administrators to run Linux shell commands on Windows. While this isn't very useful for ordinary desktop users, for serious IT staff it's a real step forward, making Windows more useful in a server and cloud world that's increasingly dominated by Linux. Even on Azure, over a third of VMs are Linux. With WSL, most Linux shell tools are at your command. These include: apt, ssh, find, grep, awk, sed, gpg, wget, tar, vim, emacs, diff, and patch. You can also run popular open-source programming languages such as python, perl, ruby, php, and gcc. In addition, WSL and Bash supports server programs such as the Apache web-server and Oracle's MySQL database management system. In other words, you get a capable Linux development environment running on Windows. While you can run Linux graphical interfaces and programs on WSL, it's more of a stunt than a practical approach at this time. Of course, with a little work... How does WSL work? Dustin Kirkland, a member of Canonical's Ubuntu Product and Strategy executive team, explained: "We're talking about bit-for-bit, checksum-for-checksum Ubuntu ELF binaries running directly in Windows. [WSL] basically perform real-time translation of Linux syscalls into Windows OS syscalls. Linux geeks can think of it sort of the inverse of 'WINE' -- Ubuntu binaries running natively in Windows." Regardless of the technical details of how WSL does what it doess, what matters now is that WSL works very, very well. Enjoy! Via zdnet.com
    1 point
  10. Ai aici o parte din cuvintele dex-online.ro : https://dexonline.ro/static/download/dex-database.sql.gz Si aici gasesti o lista de prenume pe care o poti folosi: https://ro.wikipedia.org/wiki/Listă_de_prenume_românești
    1 point
  11. Yahoo s-a dus, rămășițele sale devin Altaba by unacomn on 10/01/2017 Achiziția companiei Yahoo de către conglomeratul de telecomunicații american Verizon s-a încheiat. Această afacere se află în desfășurare încă din vara anului trecut, trecând de atunci peste câteva hopuri, după ce Yahoo a dezvăluit că a fost de două ori victima a celui mai mare incident de hacking din istoria internetului, fiind periclitate inițial o jumătate de miliard de conturi, iar apoi un miliard întreg. Totuși, în ciuda revoltării generale la adresa modului în care Yahoo a tratat incidentul, achiziția nu a fost afectată, iar Verizon a plătit suma de 4.8 miliarde de dolari pentru ceea ce a fost odată cea mai valoroasă companie de internet din lume. După această achiziție, toate funcțiile principale ale Yahoo vor trece sub tutela Verizon, urmând ca investițiile companiei în Alibaba și alte companii din Asia să fie consolidate sub numele Altaba. Aceasta componentă va rămâne independentă și în efect reprezintă tot ce mai rămâne din Yahoo care să nu fie o proprietate a Verizon. Conducerea curentă a Yahoo și-a luat tălpășița, Marissa Mayer nu mai este CEO, co-fondatorul companiei David Filo nu se mai află acolo, iar o mare parte din toți ceilalți care au ghidat compania spre situația sa precară vor căuta acum alte locuri de muncă. Serviciile Yahoo vor rămâne în funcțiune, dacă încă le mai folosește cineva. [Ars Technica] Sursa: https://zonait.tv/yahoo-nu-mai-exista/
    1 point
  12. Si apoi, dupa ce s-a facut vanzarea: https://www.sec.gov/Archives/edgar/data/732712/000073271217000003/a2017_10x3xoathxexhibitx991.htm Mda...
    1 point
  13. 1 point
  14. Synopsis: Cameradar hacks its way into RTSP CCTV cameras. An RTSP stream access tool that comes with its library. Link: https://github.com/EtixLabs/cameradar
    1 point
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