Solaris Tip: Have Your Files Changed Since Installation?
One way to check the integrity of files on your Solaris systems is by comparing their ownership, sizes and checksums against their original values. You don't need expensive application software to do basic integrity checking. One easy and free way to do this is to take advantage of a file that your system maintains on your behalf and a command called pkgchk.
Looping the Easy Way
One of the nice things about writing a column every week is that I don't often have to tackle the really big issues -- such as why Unix is still the best OS or which big company is buying which other big company and how this is going to affect all of us. Instead, I can hone in on an issue as small and personal as how you loop through a sequence of values in a script. Speaking of looping, I've just learned (and then implemented) a new trick.
Unix Tip: Grepping on Whole Words
If every time you grep for a specific word or string, you get a pile of lines that don't match what you were looking for, maybe it's time to learn about whole word searching. In today's column, we examine two ways to get what you want, the whole of what you want and nothing but what you want.
Is Your Web Site Under Attack?
If you have a web site, the answer is undoubtedly "yes". Someone somewhere or, more likely, quite a few someones are attempting to attack your site or the system on which it is running. Assuming hackers have found your site and are testing it for holes that they might crawl through, let's take a look at how you can uncover evidence of their exploits with a quick examination of your web logs.
Easy Email Filtering with Procmail
Tossing email into the /dev/null bit bucket is fine when you know the account in question will never receive any valid form of email. You can, however, get a much finer degree of control over email and still automate the cleanup of spam by using a tool such as procmail. Procmail is a basic email filter and not nearly as difficult to set up as people imagine. Let's run through the setup and focus on a couple potential stumbling blocks.
Solaris Tip: Have Your Files Changed Since Installation?
Looping the Easy Way
Esther Schindler
If the comments are ugly, the code is ugly
claird
SVG a graphics format for 21st century
pasmith
Take Chrome OS for a test spin
Sandra Henry-Stocker
Solaris Tip: Have Your Files Changed Since Installation?
jfruh
Android fragments vs. the iPhone monolith
mikelgan
What Gizmodo missed about the Pro WX Wireless USB disk drive
Sidekick: The Good News & the Bad News
Either way you look at it Microsoft Data Center management did not follow standards or best practices in this failure. In which case it makes me wonder more about the outsourcing of corporate data much less personal data.
- mburton325
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