NetBSD

In general hardware interrupts need to be processed immediately, at least so as to acknowledge it and do some first level of processing. As I understand this is not scheduled activity. Please correct me. So the question is how to choose a processor that would actually execute this hardware interrupt handler? One can answer this for Linux and/or BSD systems In general, this depends on the functionality offered by multi-core processor and OS. While using multi-core processors, you might need to configure the affinity of the interrupt as per your requirement. In the case of linux , the /proc file

I work on a NetBSD system through an ssh connection from my Mac and I want to use the screen utility so that I can start processes and come back to them after my terminal connection has been interrupted. When I type screen I get the error message: Cannot find termcap entry for 'xterm-256color' After looking through forum posts, I thought it had something to do with termcap on the remote machine, but that appears not to be the case; I can initiate screen with no errors from an ssh session from another computer, one to which I don't generally have access. This suggests that I need to configure

系统redhat7 ，httpd已经启动 [root@rhcsa conf.d]# netstat -tnpl | grep 443 tcp6 0 0 :::443 :::* LISTEN 1229/httpd 为什么如上命令只显示tcp6，而没有tcp ？ --------------------------------------------------- 监听了tcp6后，tcp也可以用的。 虽然这个只显示了IPv6的端口监听，但并不代表只接受IPv6的连接，实际上，apache会以mapped address (::FFFF:a.b.c.d) 方式来接受IPv4的连接。除了少部分平台上，例如FreeBSD，NetBSD，OpenBSD之外， Apache在编译时，默认启用了 --enable-v4-mapped 选项。所以，Apache会同时接受IPv6和IPv4的连接请求。 除非是 IPV6_V6ONLY 模式开启，才需要两个不同的socket来分别监听IPv6和IPv4.IPV6_V6ONLY模式可以通过 sysctl net.ipv6.bindv6only 来控制，默认是关闭的。如果你实在愿意在netstat中只看到IPv4端口的监听，那么，你可以修apachezhttp.conf 中，将 Listen 80 修改为 Listen 0.0.0.0:80 具体信息