摘要：
Theupgradeoption only installs new version of the packages that are already installed on the system (and yes, kernel updates belong to them).However, sometimes the updates change dependencies: for e... 阅读全文
摘要：
command line:svnswitch--relocate 阅读全文
摘要：
ssh的三个强大的端口转发命令：QUOTE:ssh -C -f -N -g -L listen_port:DST_Host:DST_portuser@Tunnel_Hostssh -C -f -N -g -R listen_port:DST_Host:DST_portuser@Tunnel_Hostssh -C -f -N -g -D listen_portuser@Tunnel_Host-... 阅读全文
摘要：
Can I run a 64-bit VMware image on a 32-bit machine?Yes, running a 64-bit OS on a 32-bit processor in VMware is possible.First of all, see if your CPU is capable of running a 64-bit OS. Search for 'Processor check for 64-bit compatibility' on the VMware site. Run the program.If it says your 阅读全文
摘要：
如果eth0为192.168.10.123/255.255.255.0，eth1为192.168.20.231/255.255.255.0，则命令格式如下：#route add -net 192.168.10.0 netmask 255.255.255.0 dev eth0#route add -net 192.168.20.0 netmask 255.255.255.0 dev eth1上面的命令把发送给192.168.10.0网段的IP包交给eth0转发，把192.168.20.0网段的IP包交给eth1转发。如果还有可能有发送给其他目的IP的包，那么你肯能希望设置一个“默认网关”：#ro 阅读全文