Unix操作系统 OpenBSD 5.0 正式版发布下载
fmms 12年前
<a href="/misc/goto?guid=4958197140918593753" target="_blank"><strong>OpenBSD</strong></a>是一个从NetBSD衍生出来的类Unix操作系统。专案领导人Theo de Raadt在1995年]发起了OpenBSD专案，希望创造一个注重安全的操作系统，此外OpenBSD也以高品质的文件、坚持开放程式码以及严格的软 件授权著名。OpenBSD的吉祥物是河豚。 <br /> <img title="openbsd.gif" border="0" alt="openbsd.gif" src="https://simg.open-open.com/show/28488edd2cd746d8c0e31f3db3c6445d.gif" width="90" height="90" /> <br /> OpenBSD 5.0 发布了，该版本改进了硬件支持、网络堆栈支持、路由守护进程以及其他用户级别的网络，改进对 SCSI 的支持，更新 OpenSSH 到 5.9 等等，详细内容请看 <a href="/misc/goto?guid=4958197141656786161" target="_blank">发行说明</a>。 <p>下载 OpenBSD 5.0 ：</p> <p><a href="/misc/goto?guid=4958197142393851526">i386/install50.iso</a> (219MB, <a href="/misc/goto?guid=4958197143139316861">SHA256</a>)<br /> <a href="/misc/goto?guid=4958197143880927076">amd64/install50.iso</a> (233MB, <a href="/misc/goto?guid=4958197144617909988">SHA256</a>).</p> <p>This is a partial list of new features and systems included in OpenBSD 5.0. For a comprehensive list, see the <a href="/misc/goto?guid=4958197145351575748">changelog</a> leading to 5.0.</p> <p></p> <ul> <li>Improved hardware support, including: <ul> <li>MSI interrupts for many devices, on those architectures which can support them (amd64, i386, sparc64 only so far). </li> <li>A new <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=dma_alloc&sektion=9">dma_alloc(9)</a> API makes it easier for kernel code to allocate dma-safe memory. Many drivers (especially network drivers) and subsystems (in particular scsi and the buffer cache) were adapted to use this. </li> <li>As a result, big-memory support has been enabled on all possible architectures. </li> <li>The rather rare <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=bce&sektion=4">bce(4)</a> driver now copies mbufs all the time, to cope with the hardware having a 1GB limit. </li> <li>Added <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=hds&sektion=4">hds(4)</a>, a driver for Hitachi Modular Storage SCSI devices. </li> <li>Added <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=myx&sektion=4">myx(4)</a>, a driver for the Myricom Myri-10G 10GB Ethernet devices. </li> <li>Added <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=dfs&sektion=4">dfs(4)</a>, a driver for Dynamic Frequency Switching on some macppc systems. </li> <li><a href="http://www.openbsd.org/cgi-bin/man.cgi?query=cardbus&sektion=4">cardbus(4)</a> and <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=pcmcia&sektion=4">pcmcia(4)</a> support on sgi. </li> <li>Suspend/resume support on Loongson Yeelong laptops. </li> </ul> <p></p> </li> <li>Generic network stack improvements: <ul> <li>Added support for sending Wake on Lan packets using <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=arp&sektion=8">arp(8)</a>. </li> <li>Permit turning Wake on Lan support on/off using <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ifconfig&sektion=8">ifconfig(8)</a>. </li> <li>Added Wake on Lan support to <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=xl&sektion=4">xl(4)</a>, <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=re&sektion=4">re(4)</a>, and <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=vr&sektion=4">vr(4)</a>. </li> <li>Allow <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ftp-proxy&sektion=8">ftp-proxy(8)</a> to proxy across rdomains. </li> <li>The IPv4 stack will no longer accept ICMP redirects when acting as a router. </li> <li>By default the IPv6 stack will not process ICMP6 redirects. <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=rtsol&sektion=8">rtsol(8)</a> will turn it back if -F is used. </li> <li>Reworked large parts of the <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=dhclient&sektion=8">dhclient(8)</a> options processing for better interoperability. </li> <li>Fixed <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=carp&sektion=4">carp(4)</a> to work in IPv6 only setups. </li> <li>Make it possible to <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=bind&sektion=2">bind(2)</a> to the local network broadcast address on datagram and raw sockets. </li> <li>The default multicast reject route is now ignored if the UDP socket uses the IP_MULTICAST_IF socket option. </li> <li>Make <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=gre&sektion=4">gre(4)</a> work between systems in the same LAN. </li> <li>Removed the link1 mode special addressing mode on <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=lo&sektion=4">lo(4)</a>. </li> <li>Kernel randomization speed and quality improved substantially. </li> </ul> <p></p> </li> <li>Routing daemons and other userland network improvements: <ul> <li><a href="http://www.openbsd.org/cgi-bin/man.cgi?query=bgpd&sektion=8">bgpd(8)</a> no longer bumps the rlimits: the rc.d framework respects login classes which is a much better solution. </li> <li>Correctly set the network filtersets on reload in <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=bgpd&sektion=8">bgpd(8)</a>. </li> <li>The routing socket is now sending RTM_DESYNC messages if the socketbuffer overflows. </li> <li>Allow <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ospfd&sektion=8">ospfd(8)</a> to send out LS updates and other messages larger than the MTU. </li> <li>Fixed nexthop calculation in <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ospfd&sektion=8">ospfd(8)</a> for directly connected P2P links. </li> <li>First bits to support opaque LSA in <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ospfd&sektion=8">ospfd(8)</a>. Only basic redistribute logic and LSDB handling for now. </li> <li>Creating new interfaces will no longer cause a fatal error in <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ospf6d&sektion=8">ospf6d(8)</a>. </li> <li><a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ospf6d&sektion=8">ospf6d(8)</a> handles link-state changes better. </li> <li>Better loopback handling in <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ospf6d&sektion=8">ospf6d(8)</a>. </li> <li>No longer install extra multicast routes in <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ripd&sektion=8">ripd(8)</a> and <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ldpd&sektion=8">ldpd(8)</a>. </li> <li>Make <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=kqueue&sektion=2">kqueue(2)</a> work with <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=sosplice&sektion=9">sosplice(9)</a>. </li> <li>Enabled <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=sosplice&sektion=9">sosplice(9)</a> in <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=relayd&sektion=8">relayd(8)</a> for TCP. </li> <li>Added support for divert-to which provides some benefits over rdr-to in <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=relayd&sektion=8">relayd(8)</a>. </li> <li>Fixed trap sending in <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=snmpd&sektion=8">snmpd(8)</a>. </li> <li>Make <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ping6&sektion=8">ping6(8)</a> compare minimum amount of bytes between what was received and what was sent out. </li> <li>Make <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=traceroute&sektion=8">traceroute(8)</a> with type-of-service setted (-t) display a message if the returned packet has a different tos type. </li> <li>Added the socket splicing fields of struct socket to netstat -vP output. </li> </ul> <p></p> </li> <li><a href="http://www.openbsd.org/cgi-bin/man.cgi?query=pf&sektion=4">pf(4)</a> improvements: <ul> <li>Make <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=pf&sektion=4">pf(4)</a> reassemble IPv6 fragments. In the forward case, pf refragments the packets with the same maximum size. </li> <li>Allow <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=pf&sektion=4">pf(4)</a> to filter on the rdomain a packet belongs to. </li> <li>Make <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=pf&sektion=4">pf(4)</a> allow userland proxies to establish cross rdomain proxy sessions. </li> <li>Added IPv6 ACK prioritization in <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=pf&sektion=4">pf(4)</a>. </li> <li>Change 'set skip on <...>' to work with interface groups. </li> <li><a href="http://www.openbsd.org/cgi-bin/man.cgi?query=pfsync&sektion=4">pfsync(4)</a> supports IPv6 as network protocol. </li> <li>Switched <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ftp-proxy&sektion=8">ftp-proxy(8)</a> over to divert-to instead of rdr-to. </li> <li><a href="http://www.openbsd.org/cgi-bin/man.cgi?query=tftp-proxy&sektion=8">tftp-proxy(8)</a> uses 'divert-to' as well. </li> </ul> <p></p> </li> <li>SCSI improvements: <ul> <li>most SCSI hardware drivers now use the new iopools infrastructure. </li> <li><a href="http://www.openbsd.org/cgi-bin/man.cgi?query=sci&sektion=4">scsi(4)</a> devices are now all provided with a unique devid, which is displayed during the probe process. </li> <li>ASC/ASCQ error codes and verbiage now in sync with http://www.t10.org/lists/asc-num.txt. </li> <li>progress on iSCSI includes better login, better logout, preliminary FSM support in <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=iscsid&sektion=8">iscsid(8)</a>, and improved logging and debug information. </li> <li><a href="http://www.openbsd.org/cgi-bin/man.cgi?query=uk&sektion=4">uk(4)</a> can now safely and reliably detach an unknown SCSI device. </li> <li><a href="http://www.openbsd.org/cgi-bin/man.cgi?query=mpath&sektion=4">mpath(4)</a> device and kernel support is improved. </li> <li><a href="http://www.openbsd.org/cgi-bin/man.cgi?query=vscsi&sektion=4">vscsi(4)</a> now ensures output always goes to the correct connection. </li> <li><a href="http://www.openbsd.org/cgi-bin/man.cgi?query=vscsi&sektion=4">vscsi(4)</a> connections can now be reset gracefully. </li> <li><a href="http://www.openbsd.org/cgi-bin/man.cgi?query=scsi&sektion=4">scsi(4)</a> devices on fibre channel fabrics no longer inherit the adapter's address. </li> </ul> <p></p> </li> <li>Assorted improvements: <ul> <li>For additional security, <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=security&sektion=8">security(8)</a> was rewritten in Perl. </li> <li>Mandoc 1.11.4: Now accepts <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=eqn&sektion=7">eqn(7)</a> input (no fancy formatting yet) and supports -Tutf8 output (but no utf8 input yet). </li> <li>Removed a variety of OS-compat emulation code, leaving just the Linux support. </li> <li>Small improvements to Linux compat (only available on i386). </li> <li>Improved our own <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=pkg-config&sektion=1">pkg-config(1)</a> implementation with extended comparison scheme and implementing various new options. </li> <li>The math library, libm, was fully fleshed out to support all C99 required parts. Many bugs for various architectures were fixed along the way. </li> <li><a href="http://www.openbsd.org/cgi-bin/man.cgi?query=malloc&sektion=3">malloc(3)</a> is a lot faster and has a few further security features (more randomization, as well as the 'S' flag to enable all paranoia checks). </li> <li>'make depend' is no longer neccessary in kernel compilation directories since the dependencies are calculated automatically. </li> <li>Increased the default size of the buffer cache. </li> <li><a href="http://www.openbsd.org/cgi-bin/man.cgi?query=kqueue&sektion=2">kqueue(2)</a> now works on /dev/random and spliced sockets </li> <li>On MBR-based disks, scan through up to 256 extended partition tables when looking for an OpenBSD partition table. </li> <li>Added POSIX 2008 <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=fdopendir&sektion=3">fdopendir(3)</a> and <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=opennat&sektion=2">openat(2)</a> functions, as well as the O_CLOEXEC, O_DIRECTORY, and F_DUPFD_CLOEXEC flags. </li> <li>Improved lint format string checks and added a few other checks. </li> <li><a href="http://www.openbsd.org/cgi-bin/man.cgi?query=kdump&sektion=1">kdump(1)</a> now dumps stat and sockaddr structures, sysctl mib strings, and decodes syscall flags and operation bits. </li> <li>Improved kernel pool debug checking. </li> <li>Improved correctness of signals and various syscalls when rthreads are in use. </li> <li>Kernel <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=malloc&sektion=9">malloc(9)</a> space and stacks moved to non-dma memory. </li> <li>Fixed some shutdown/reboot hangs on NFS clients. </li> <li>UNIX-domain socket paths are now guaranteed to be NUL-terminated. </li> <li>Added support for <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=wprintf&sektion=3">*wprintf(3)</a>, <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=wcscasecmp&sektion=3">wcs{,n}casecmp(3)</a>, and <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=wcsdup&sektion=3">wcsdup(3)</a>. </li> <li>NULL is now a (void *). </li> </ul> <p></p> </li> <li>Install/Upgrade process changes: <ul> <li>Completed support for DUID disk installs, and enabled it fully. </li> <li>Tried to make <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=sysmerge&sektion=8">sysmerge(8)</a> work in the installer, but ran into small problems and decided to disable it. </li> <li>Install non-free firmwares from the internet upon first boot, based on a question in the installer. </li> <li><a href="http://www.openbsd.org/cgi-bin/man.cgi?query=svnd&sektion=4">svnd(4)</a>-like behaviour became the default for <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=vnd&sektion=4">vnd(4)</a> devices. This is what is used to build the media. </li> </ul> <p></p> </li> <li><a href="http://www.openbsd.org/cgi-bin/man.cgi?query=rc.d&sektion=8">rc.d(8)</a> framework improvements: <ul> <li><a href="http://www.openbsd.org/cgi-bin/man.cgi?query=rc.d&sektion=8">rc.d(8)</a> is now also used for the base system daemons. </li> <li>Backward compatible with the historic way of starting daemons. </li> <li>Notify the user by appending (ok) or (failed) in interactive mode. </li> <li>Better diagnostics with the introduction of RC_DEBUG. </li> </ul> </li> </ul>