Arghhh… Disk space is full. First thing to do? Of cause, is to free some disk space first. Next question, what to delete? Log files are the first on the list. But log files are normally named after running number in sequence. To delete them, it has to be either a “one by one” command”s” or in script. Oops, there is another way. Look forward :
System Admins like to monitor stuff. CUP, memory, network interface card, hard disk & etc. It would be better if the skin can be change. Of cause, since it is going to on it on the desktop most of the time, it should be light in resources. Plug in support is a must, to extend the monitoring functions & area. gkrellm is the answer.
Ever wonder why vi behave weirdly after a new installation of Linux or BSD? Delete key turns the current character into capital, navigation keys adds a newline with random characters, Home & End key does nearly the same, syntax color no longer works (which is eye soring if reading along with a bunch of comments) & other frustration.
That’s suppose to be.
Because the default vi (literally) that comes with the default installation is the stripped down version of vim. The usual vim that comes with the more comforting features are still around, just that it needs to be tweak. Or most, install.
rsync is a great tool. For archiving, copying & of cause syncing. It’s able to copy to destination and maintain the same permission (-a), be verbose (-v), show the progress bar (–progress), log the process (–log-file=logfilename) & etc. But there are times when rsync is running on a slow connection, over a big set of files. You’re in luck, rsync support rate limit. Although it is rate limiting the I/O bandwidth, it is useful enough for us to pump the data onto the pipe with the speed we want.
Securing machines, from physical access compromise. Backups, user logins, encryption, BIOS (some mistook it as CMOS) access password protected, how about boot loader? It can potentially boot into single user mode and reset what ever password. Gotcha?
If grub is used, you’re in luck. Grub is capable to apply password to every boot or every entry in it.
ISC BIND DNS SRV resource record type is rarely needed on a open source world, at least not as frequent as A, NS, MX, CNAME PTR and TXT resource record. After creating it in BIND DNS as the sample format below :
After a distribution update in Ubuntu, wanna check out the version?
Run the below command :
After installing a new display Nvidia card on Ubuntu linux, it did not detect the correct resolution available on the monitor. Rather, it uses the wrongly (normally lower resolution) detected resolution, which resulted poor display. After checking out /var/log/Xorg.0.log, it reported correct max resolution detected both on the Nvidia display card & monitor. Below is the resolution :
Having to use a mac has been rewarding for the functionality of OS X, state of the art hardware, reasonable price, and most of all (to us open source monkeys), free software. Free software on mac have always been a problem if the developer did not make it available on mac. Even though the source of the software are made available, it could still be a hassle to compile and debug. Thanks to MacPorts, all of this can be done in just a few words of execution.
The installation of MacPorts can be found here. Below are the common usage of MacPorts :
