Information and links about the ESVA anti-spam prebuilt VM. Its current home is now http://www.esvacommunity.com/ since the creator & original maintainer have become inactive. [...]
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Information and links about the ESVA anti-spam prebuilt VM. Its current home is now http://www.esvacommunity.com/ since the creator & original maintainer have become inactive. [...] I recently needed to add monitoring of a UPS powering network equipment to a Linux server already monitoring one USB-connected UPS. Since the second UPS also uses a USB connection for monitoring apcpusd (the standard UPS management package for Linux systems) was not seeing it. This is not a fault of the software – it’s designed to work pretty much seamlessly with detection of a single UPS and does so, but autodetectin multiple battery backups would still require some level of manual configuration – at the very least, which one(s) are powering the monitoring system in case it needs to shut down? The solution is to set up udev rules to let the system recognize each attached UPS as a distinct device using the serial number of the UPS, then follow the instructions for managing multiple UPSes in the manual. Continue reading Configuring apcupsd on Linux for Multiple USB UPSes I occasionally get requests from clients for assistance with sending out email marketing to their existing clients. My advice in these situations is always the same: Use A Service. Every client that I’ve dealt with that’s interested in this kind of marketing starts out planning to do it using their regular email account, but there are good reasons not to do so. The reasons for using a service break down into three key areas: creation of your content, distribution of your content, and management of your address list. Keep reading for some notes on those. I’m regularly asked by customers “Which laser printer should we get?” or “What’s the cheapest good laser printer?” Here’s an initial stab at answering those questions. I’ve been pulling together some numbers on the costs to purchase & run assorted monochrome laser printers. While there’s still work to be done on tracking down some items like maintenance kit part numbers and prices, none of the outstanding information is likely to lower the Total Cost of Ownership (TCO) of a printer. The preliminary numbers have surprised me quite a bit.
Read More for print volume numbers and some specific printers. Continue reading Monochrome Laser Printer TCO/Cost – Preliminary Results I’m currently working up an article on the total cost of ownership (TCO) for printers and choosing printers for your office, but while I work on the details (including researching costs for a variety of printers) here’s some information on the calculations involved. This is important for small to midsize offices because the variation in cost between different printer manufacturers and between low-end, midrange and high-end printers can add up to thousands of dollars a year in consumables. Currently I’m only focusing on monochrome/black & white laser printers. The same calculations can be applied to color and multifunction/all-in-one printers as far as printing is concerned, but they don’t take into account the potential added value of the additional features (and volume of color printing will vary by office). I’m also not factoring in the cost of paper, since it’s effectively a constant – it’s unlikely that paper cost will vary based on which printer is chosen. For many small businesses, when it’s time to add or replace a printer in your office it’s easy to just go to an office supply store and buy whatever’s on sale. It’s also almost always a mistake. It’s worth doing at least a little research when you’re purchasing technology items, particularly for items that you expect to last or that use consumables – specifically printers and fax machines. Because of the use of paper, toner or ink and possibly maintenance supplies, the up-front purchase price of a printer or fax machine is only a very small part of the total cost you’ll pay over several years of ownership. There may also be a surprisingly significant difference in setup costs between different pieces of equipment if you’re paying a third party to set up equipment and get it working for you. This article leads off a series of occasional articles on purchasing printers for your office with a quick overview of some of the issues that I’ll examine in more detail in future articles. |
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