Let’s assume that you need to install a multi-purpose firewall/server for your customer, but their ISP of choice is just too lazy to install their cabling to customer’s premises. Let’s also add that all you are left with is a Huawei E1552 Modem for HSPA/3G mobile packet data with a data plan SIM card. If so – here’s how I put it to use for persistent Internet uplink (this time with Debian squeeze) until the semi-decent ISP is ready. Continue reading ‘Huawei E1552 Modem with Debian Linux’
Archive for February, 2012
Huawei E1552 Modem with Debian Linux
Published 29.02.2012 Uncategorized Leave a CommentTags: Debian, E1552, Huawei, linux, Modem, ppp, USB
Datacenter rack layout hints
Published 21.02.2012 Uncategorized Leave a CommentTags: 19-inch, Cable, cabling, Data center, datacenter, equipment, fitting, Hardware, rack, server room, Servers, ups
A couple of hints when fitting a 19-inch rack with network and server equipment. I have seen just too many badly fitted racks and messy cabling. Here some of my guidelines. Continue reading ‘Datacenter rack layout hints’
UPS APC Smart SC1000 with NUT / Linux
Published 15.02.2012 Uncategorized 1 CommentTags: apc, apc-smart, battery, linux, nut, ups
image (C) APC
Hi! Here’s another UPS review 😉 I am not an UPS tester by profession, but this topic seems to be around me recently, caused by various opportunities. This time I am playing with APC Smart SC1000 tower/rack-mount unit, and it’s nut interoperation. Continue reading ‘UPS APC Smart SC1000 with NUT / Linux’
UPS Ever Duo II Pro with NUT / Linux – bad idea
Published 08.02.2012 Uncategorized 6 CommentsTags: battery, bug, ever, linux, nut, ups, vulnerability
In my previous post about that device I described UPS Ever Duo II Pro working with nut under Linux, along with variables it exports, battery charge and drain cycles and this UPS’ issues. This follow-up is why using this UPS for serious unattended production environment is not a good idea. Continue reading ‘UPS Ever Duo II Pro with NUT / Linux – bad idea’
Seasoned admin, Linux hacker, Android fan, Gentoo enthusiast. Doing digital audio on Linux when time permits. At work: IT Team Lead (+labs, +datacenters...)
Marcin's rootprompt blog - /dev/web0 