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So you use keys to SSH between your hosts, and you either have separate keys for each machine you use, or worse you have the same key on each machine. Lets go over why each of those are bad, and lets see how SSH Agent forwarding will help with those issues and make things easier [...] SystemTap is the Linux analogy to Solaris DTrace and is similar to the strace command, only much much more powerful. It effectively lets you set breakpoints in the kernel to monitor what your applications are doing. For example if I was worried that some application I’d written was polling way too often, I could ask [...] As a sysadmin working with Linux PCs I often need real time data on the status of the systems I manage. For example I might need to know what is using up all the bandwidth on an interface, whats taking up all the memory or why my X displays are running sluggish. The impromptu |
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