Cacti: corrupt database

René Jorissen on June 16, 2011 0 Comments • Tags: #autorepair #be #cacti #crashed #failed #fragment #marked #mysqlcheck #poller_output #repaired #should #sql

After rebooting a Cacti server, the customer complained that no new graphs were drawn by the server. I tried to run the poller.php script with the –-force option and noticed the following output: 06/16/2011 10:34:48 AM – SPINE: Poller[0] ERROR: SQL Failed! Error:’145′, Message:’Table ‘./cacti/poller_output’ is marked as crashed and should be repaired’, SQL Fragment:’INSERT … Read More

Management, Switching

Upgrading Cisco switch stack

René Jorissen on December 15, 2010 0 Comments • Tags: #allowfeatureupgrade #archive #downloadsw #ftp #imageonly #overwrite #stack #switch

I always upgrade a switch stack with one single command. Last week I received a call from a customer with the question about the upgrade procedure for a switch stack. The customer wanted to upload the image separately to every single switch. I told him that he could upgrade all switches at once. Since I … Read More


Cisco ASA: web interface not working

René Jorissen on December 14, 2010 24 Comments • Tags: #113 #algorithms #common #encryption #error #net::err_ssl_version_or_cipher_mismatch #no #ssl

I had to troubleshoot a Cisco ASA today, where the client wasn’t able to connect to the management web interface anymore via https. The customer didn’t install ASDM locally, but always starts the Java-based version. After upgrading the Cisco ASA to software version 8.2(1) and a reboot, the client wasn’t able to connect to the … Read More

Configuration Example, Management

Upgrade Cacti 0.8.x

René Jorissen on August 18, 2010 3 Comments • Tags: #cacti #cactiez #upgrade

A lot of people use the CactiEZ virtual appliance to install a running Cacti environment. The latest CactiEZ virtual appliance (CactiEZ v0.6) uses Cacti v0.8.7c with Plugin Architecture 2.2. Of course a lot of people are developing Cacti and the latest stable version is Cacti v0.8.7g with Plugin Architecture 2.8. I always have trouble with … Read More


Cisco Virtual Com

René Jorissen on July 28, 2010 0 Comments • Tags: #cisco #com #console #usb #virtual

It took some time, but Cisco started to migrate from the blue RJ-45 based console cable to an USB based console cable. The latest types of routers and switches are equipped with both types of connections or only with the USB based connection, like the new IBM blade switches. The picture below shows the console … Read More


Playing with text files in Linux

René Jorissen on February 26, 2010 1 Comment • Tags: #cut #linux #sort #text #uniq

I had a big Microsoft Event Viewer log file and I wanted specific information from the log file. At first I was thinking about using Microsoft Excel to do some filtering, but that didn’t really help. At the end Linux did the trick. I used Cygwin under Windows to extract the specific information. The raw … Read More