Mark Berry April 12, 2013
The PBX in a Flash machine at a client site sends me a daily Logwatch email (setup described here). At the bottom of that email are a few lines telling me how much disk space is in use. I also SNMP to monitor disk usage (described here).
Both of these tell me that disk usage is up to 75%. Looking back a few months, it was only 50%. What is using up so much space?More...
Mark Berry February 17, 2012
I’ve repurposed an old Dell PowerEdge 1500SC with a PERC 3/SC RAID card for use as a Linux phone server running Asterisk. Unfortunately, the only version of Dell OpenManage that works for the 1500SC (OpenManage 4.5 docs and download) is only supported under Redhat 7.1. I’m using CentOS 5.2, so I’m out of luck.
I eventually found that I could use Linux tools for the LSI MegaRAID SCSI 320-1LP to control and monitor the PERC 3/SC. Visit this download page and search for “OS: Linux”.More...
Mark Berry July 8, 2011
I use SNMP to monitor ssCPUIdle on CentOS 5.2. Today, after 248 days of uptime, it started returning 0% idle:
$snmpwalk -v 1 localhost –c public .188.8.131.52.4.1.2021.11.11
UCD-SNMP-MIB::ssCpuIdle.0 = INTEGER: 0
Mark Berry June 7, 2010
I have PBX in a Flash set up to create a daily backup and FTP the file to a Windows server. But how do I get rid of the old backups on the Linux machine, which is running CentOS 5.2? A cron job can do the deletes, but I also want a list of the deleted files delivered with my daily Logwatch 7.3 report.
Here’s what I did:More...
Mark Berry June 2, 2010
I wanted to copy my web site and subwebs from Go Daddy to my local machine. My trusty old WS_FTP32 client kept disconnecting partway through the (large) download. I installed FileZilla, and while that got further, it ultimately disconnected as well.
I figured if I could compress the larger folders using gzip, I could just download a few compressed files. But this Go Daddy account doesn’t have shell access. How do I run gzip? With a Cron job!More...
Mark Berry February 16, 2010
Back in November 2008, I blogged about Setting Up PBX in a Flash, Part 1: Configuring a Virtual Machine. That article discussed running PBX in a Flash (PiaF) under Microsoft Virtual PC or Virtual Server 2005. Within a couple weeks, I abandoned the virtual machine approach and published Moving PBX in a Flash from a Virtual to a Physical Machine.
Recently I’ve been testing Microsoft’s free bare-metal hypervisor, Microsoft Hyper-V Server 2008 R2. Especially now that Hyper-V supports Red Hat Enterprise Linux, could Hyper-V be the answer to virtualizing PiaF on a Microsoft platform?
Let’s try it and see what happens.More...
Mark Berry March 30, 2009
Today a client had a power outage. Although the PBX in a Flash (PiaF) server was on an Uninterruptible Power Supply (UPS), the outage lasted long enough that the PiaF server crashed. Twice. Time to brave the waters of installing UPS monitoring software under Linux.
The version of PiaF that I’m using is based on CentOS 5.2, which is derived from Red Hat Enterprise Linux 5.2. APC PowerChute Business Edition supports Linux if you are using their higher-end SmartUPS line, but there is no support for BackUPS-type UPSs.More...
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