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Found 5 results

  1. Administrez servere linux (orice distributie) cat si FreeBSD. Experienta in domeniu: 20 de ani In mare, din cunostintele ce le am: - Politici de securitate atat pe FreeBSD cat si pe linux - Solutii antispam si solutii de securitate pentru servere de email - Orice arhitectura de server(e) web (content delivery & caching, dual strat, clusters) - MySQL, PostgreSQL, PHP - Tehnici avansate de mitigare atacuri DDoS. - Sisteme de detectie si prevenire a intruziunilor Instalez, configurez si optimizez orice fel de daemon sau aplicatie open source. De asemenea, ofer consultanta pentru necesitati hardware. Pentru cotatii de pret, trimite un email te rog la tex at unixteacher dot org (sau un mesaj privat)
  2. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ## Advisory Information Title: FreeBSD 10.x ZFS encryption.key disclosure (CVE-2015-1415) Advisory URL: https://pierrekim.github.io/advisories/CVE-2015-1415.txt.asc Date published: 2015-04-07 Vendors contacted: FreeBSD Release mode: Coordinated release ## Product Description FreeBSD is a UNIX-like operating system. ## Vulnerability Summary FreeBSD 10.x installer supports the installation of FreeBSD 10.x on an encrypted ZFS filesystem by default. When using the encryption system within ZFS during the installation of FreeBSD 10.0 and FreeBSD 10.1, the encryption.key has wrong permissions which allow local users to read this file. Even if the keyfile is passphrase-encrypted, it can present a risk. ## Details By default, the encryption key file is /boot/encryption.key. Instead of being 0600, the permissions are 0644: $ ls -la /boot/encryption.key - -rw-r--r-- 1 root wheel 4096 Feb 17 15:16 /boot/encryption.key $ This file is readable by a local user. ## Vendor Response According to the vendor, a security advisory will be published, describing the problem and the solution. It concerns: - stable/10, 10.1-STABLE - releng/10.1, 10.1-RELEASE-p8 - releng/10.0, 10.0-RELEASE-p18 ## Report Timeline * Mar 01, 2015: Problem found by Pierre Kim * Apr 01, 2015: Vendor is notified of the vulnerability * Apr 01, 2015: Vendor confirms report and indicates a fix is prepared but there will be no security advisory format notification because of the nature of the problem * Apr 02, 2015: Pierre Kim asks a CVE number to the vendor * Apr 02, 2015: Vendor indicates to use CVE-2015-1415 and confirms that a signed notification to the mailing lists will be sent. * Apr 03, 2015: Pierre Kim contacts FreeBSD about the future notification * Apr 04, 2015: Vendor confirms a security advisory will be published next week * Apr 07, 2015: Vendor publishes a security advisory (FreeBSD-SA-15:08) * Apt 07, 2015: This advisory is sent to bugtraq@ ## Credit This vulnerability was found by Pierre Kim (@PierreKimSec). ## References https://www.freebsd.org/doc/handbook/bsdinstall-partitioning.html https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1415 https://www.freebsd.org/security/advisories/FreeBSD-SA-15:08.bsdinstall.asc ## Disclaimer This advisory is licensed under a Creative Commons Attribution Non-Commercial Share-Alike 3.0 License: http://creativecommons.org/licenses/by-nc-sa/3.0/ -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBCAAGBQJVJF22AAoJEMQ+Dtp9ky28NDgP/iW9YALiZKLPVhnShFEhFO4C SvSza1s7LJkhtOH8qOGplzTrn8wSV5BNhwzMaIaKpksP5RjoCkynxvAw/OncazPl tsfHM89m7bQ4puyXF3eb6lMkfaIkxoDAXM5R5DFb2Q+3wg4SDygdM7+BQEdqCXDV 2B+ZNGae2CcsqLq04zjskFgY2bwqNMyX3GbbmUJvVI5IXQIS30e1lVIq8zxcK7u0 lKFlVyp+gdyusenPz0lCqR82Pe1IA3tHuNn2zw3/EudT4VhD789/t/0lEWlSyNg7 uiTCqFpQXnpEnvXEez1gZiDuNccIMXXYv0agB+/mYkkoviQPk5jqCwI5rvs+ppFU IH0gAafqS/UIl5+/dhDdIVDA4+r4WWLUxJfFkDy4ThCQHZtZMCsBYk3/RNJBPDUW JiVZWV8LSSHtYfWj7YoiCswuC9FLp6CT9e+/XQUJjpNrwfpeT5KlFOCFUKQXwV6W 5nUJnQhjVfrXVjeRuOvMCInSwG8DWbfyX75QMmJNyV7aPMrS2prRXbOlTLuQUyzP cJkmToeO4XE4COV+jvtC+c39Booy3r8yp3lfHmz1NXffiv6Ua+11vLamUeYOVPew r4TmionPpSeAx3ODhKEKGjW+HIkl9sx3WcSnEBl88Aqd3Zv77G3ok4usFz4PvPnb /hnH/lhpePtv13jyZpXc =pOPH -----END PGP SIGNATURE----- Source
  3. FreeBSD Is Now Available On DigitalOcean! Support for FreeBSD has been one of the most common requests from our customers, and we’re thrilled to be delivering it you today. FreeBSD is a Unix-like operating system that is the platform of choice for some developers because of the security and stability that it offers. Additionally, FreeBSD offers an easy way to customize software installation by using its unique Ports Collection to build software from source.
  4. Scurta introducere: Plecand de la o ideea lui Nytro de a posta un tutorial despre access point pe backtrack, am zis ca ar fi ok sa fac share la un tutorial facut de mine in urma cu 9-10 luni. Cum imi plac lucrurile mai complicate si dorind ceva foarte stabil, AP-ul l-am facut pe FreeBSD. -- Satul de micile cutiute magice folosite pentru Wireless / Routing (Netgear, D-Link), am decis sa-mi fac un AP pe unul din “serverele” cu FreeBSD ce le folosesc acasa pentru lucru. Dezavantajele cutiutelor: Se blocau frecvent, erau instabile. Note: - Placa wireless folosita: Linksys WMP54G. (O vede ca Ralink Technology, Corp) - In tutorial nu am inclus si configurarea protejarii wireless-ului, o sa fac un tutorial separat pentru asta. (Update: S-a facut.) - Test-ul wireless-ului l-am facut dupa un netbook; Screenshot-ul se poate vedea aici. - Pe netbook, am configurat manual adresa IP; Daca doriti sa aloce automat, puteti instala DHCPD. - NAT-ul in firewall este facut catre 10.0.0.12 (Adresa IP dupa placa de retea externala – Nu am specificat nat catre interfata pentru ca este si IPv6) - FreeBSD-ul folosit este 8.2 Release. tex ~ # pciconf -lv .................................... ral0@pci0:1:0:0: card=0x00551737 chip=0x03011814 rev=0x00 hdr=0x00 vendor = 'Ralink Technology, Corp.' device = 'Edimax 54 MBit WLan 802.11g rt 2500 (b8341462)' class = network tex ~ # ifconfig ral0 ral0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> metric 0 mtu 2290 ether 00:16:b6:5d:73:05 media: IEEE 802.11 Wireless Ethernet autoselect (autoselect) status: no carrier tex ~ # dmesg |grep ral ral0: <Ralink Technology RT2561S> mem 0xfbef8000-0xfbefffff irq 17 at device 0.0 on pci1 ral0: MAC/BBP RT2661B, RF RT2527 ral0: [ITHREAD] ppc0: <Parallel port> port 0x378-0x37f irq 7 on acpi0 ppbus0: <Parallel port bus> on ppc0 ppi0: <Parallel I/O> on ppbus0 tex ~ # ifconfig wlan1 create wlandev ral0 wlanmode hostap tex ~ # ifconfig wlan1 up scan SSID/MESH ID BSSID CHAN RATE S:N INT CAPS FRITZ!Box o... 00:24:fe:ac:7b:35 1 54M -93:-95 100 EPS RSN WPA WME HTCAP ATH WPS LINUX SECUR... 00:1b:2f:f6:d5:12 11 54M -83:-95 100 EPS RSN WPA WME tex ~ # tex ~ # ifconfig wlan1 192.168.0.1 netmask 255.255.255.0 ssid RTFM channel 11 tex ~ # ifconfig wlan1 wlan1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 ether 00:16:b6:5d:73:05 inet6 fe80::216:b6ff:fe5d:7305%wlan1 prefixlen 64 scopeid 0x7 inet 192.168.0.1 netmask 0xffffff00 broadcast 192.168.0.255 nd6 options=3<PERFORMNUD,ACCEPT_RTADV> media: IEEE 802.11 Wireless Ethernet autoselect mode 11g <hostap> status: running ssid RTFM channel 11 (2437 MHz 11g) bssid 00:16:b6:5d:73:05 country US authmode OPEN privacy OFF txpower 0 scanvalid 60 protmode CTS dtimperiod 1 -dfs tex ~ # pico /etc/rc.conf ............ wlans_ral0="wlan1" create_args_wlan1="wlanmode hostap mode 11g" ifconfig_wlan1="inet 192.168.0.1 netmask 0xffffff00 ssid RTFM channel 11" ............ tex ~ # pico /etc/pf.conf ............ nat from 192.168.0.0/24 to any -> 10.0.0.12 ............ tex ~ # /etc/rc.d/pf reload Reloading pf rules. tex ~ # sysctl net.inet.ip.forwarding=1 net.inet.ip.forwarding: 0 -> 1 tex ~ # echo 'net.inet.ip.forwarding=1' >> /etc/sysctl.conf tex ~ # ifconfig -m wlan1 wlan1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 ether 00:16:b6:5d:73:05 inet 192.168.0.1 netmask 0xffffff00 broadcast 192.168.0.255 inet6 fe80::216:b6ff:fe5d:7305%wlan1 prefixlen 64 scopeid 0x7 nd6 options=3<PERFORMNUD,ACCEPT_RTADV> media: IEEE 802.11 Wireless Ethernet autoselect mode 11g <hostap> status: running supported media: media OFDM/54Mbps mode autoselect mediaopt hostap media OFDM/48Mbps mode autoselect mediaopt hostap media OFDM/36Mbps mode autoselect mediaopt hostap media OFDM/24Mbps mode autoselect mediaopt hostap media OFDM/18Mbps mode autoselect mediaopt hostap media OFDM/12Mbps mode autoselect mediaopt hostap media OFDM/9Mbps mode autoselect mediaopt hostap media OFDM/6Mbps mode autoselect mediaopt hostap media DS/11Mbps mode autoselect mediaopt hostap media DS/5.5Mbps mode autoselect mediaopt hostap media DS/2Mbps mode autoselect mediaopt hostap media DS/1Mbps mode autoselect mediaopt hostap media OFDM/54Mbps mode 11g mediaopt hostap media OFDM/48Mbps mode 11g mediaopt hostap media OFDM/36Mbps mode 11g mediaopt hostap media OFDM/24Mbps mode 11g mediaopt hostap media OFDM/18Mbps mode 11g mediaopt hostap media OFDM/12Mbps mode 11g mediaopt hostap media OFDM/9Mbps mode 11g mediaopt hostap media OFDM/6Mbps mode 11g mediaopt hostap media DS/11Mbps mode 11g mediaopt hostap media DS/5.5Mbps mode 11g mediaopt hostap media DS/2Mbps mode 11g mediaopt hostap media DS/1Mbps mode 11g mediaopt hostap media autoselect mode 11g mediaopt hostap media DS/11Mbps mode 11b mediaopt hostap media DS/5.5Mbps mode 11b mediaopt hostap media DS/2Mbps mode 11b mediaopt hostap media DS/1Mbps mode 11b mediaopt hostap media autoselect mode 11b mediaopt hostap media autoselect mode autoselect mediaopt hostap ssid RTFM channel 11 (2462 MHz 11g) bssid 00:16:b6:5d:73:05 country US authmode OPEN privacy OFF txpower 0 scanvalid 60 protmode CTS dtimperiod 1 -dfs tex ~ # Alte note: - Daca doriti sa va faceti o jucarie de genul si nu pricepeti ceva, va pot ajuta. - O sa includ in acest thread inca un howto, pentru protejarea AP-ului.
  5. *BSD Books

    Linux is for people who hate Windows. BSD is for people who love UNIX. Unix Toolbox http://cb.vu/unixtoolbox.xhtml BSD UNIX Toolbox: 1000+ Commands for FreeBSD, OpenBSD and NetBSD http://depositfiles.com/en/files/6110973 BSD Hacks http://rapidshare.com/files/76508322/BSD_Hacks_-_100_Industrial-Strength_Tips___Tools__2004_.chm Mastering FreeBSD and OpenBSD Security http://rapidshare.com/files/58565992/0596006268.rar Network Administration with FreeBSD http://rapidshare.com/files/112937769/1847192645.zip Building a Server with FreeBSD 7 http://rapidshare.com/files/112937445/159327145X.zip Absolute FreeBSD http://rapidshare.com/files/85696359/1593271514.zip Designing BSD Rootkits: An Introduction to Kernel Hacking http://rapidshare.com/files/26984813/1593271425.zip Absolute OpenBSD http://rapidshare.com/files/100836218/Absolute_OpenBSD_-_UNIX_For_The_Practical_Paranoid__2003_.pdf The OpenBSD 4.0 Crash Course & Building Firewalls with OpenBSD and PF http://rs169.rapidshare.com/files/47233768/FreeB.rar The Book of PF: A No-Nonsense Guide to the OpenBSD Firewall http://rapidshare.com/files/83116148/1593271654.zip
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