Tag: Linux

  • XenServer 5.6: Add /var/log/btmp to logrotate

    Warning: Since a large /var/log/btmp could indicate that somebody is running brute force attacks against your system, you should at least think about changing the ssh port or setting up tools like DenyHosts or Fail2Ban (see here for more information about preventing ssh brute force attacks). By default logrotate seems not be configured for the […]

  • Ubuntu: Remove/Uninstall old kernel images

    To clean up your Ubuntu system it could reasonable to remove old kernels from time to time. For example, if you use a separate /boot partition which have in most cases only some 100MBs space a lot of the kernel images could result in no free disk space. To list all kernels that are installed […]

  • Crashplan 3.8.2010: Fix “CrashPlan PRO Server failed to initialize – error 4001” on Linux

    For any reason my Linux CrashPlan PRO Server (version 3.8.2010) crashed. The CrashPlan manager web user interface shows the error CrashPlan PRO Server failed to initialize – error 4001 After restarting the CrashPlan PRO Server the log (/var/log/proserver/com_backup42_app.log.0) shows the following error: […] org.h2.jdbc.JdbcSQLException: File corrupted while reading record: “index not found 286”. Possible solution: […]

  • fit-PC2 & Ubuntu 9.10: Configure Wi-Fi access for WPA2 protected WLAN

    Here is a step-by-step tutorial how to configure a fit-PC2 running Ubuntu 9.10 to connect to a WPA2 protected WLAN. First, follow the instructions on http://www.fit-pc2.com/forum/viewtopic.php?f=43&t=1150 to install some fit-PC2 packages that ensure the hardware support. After rebooting, the system should use the fit-PC2 kernel: # sudo uname -r 2.6.31-34-fitpc2 Next, create the file /etc/wpa_supplicant/wpa_supplicant.conf […]

  • Configure nullmailer to use SMTP authentication

    nullmailer is a minimalistic and easy to configure MTA (mail transport agent). It is described on the homepage as follows: Nullmailer is a mail transport agent designed to only relay all its messages through a fixed set of “upstream” hosts. It is also designed to be secure. nullmailer is a good choice for systems that […]

  • CrashPlan PRO & Windows: How to connect to a remote (headless) CrashPlan PRO client running on Linux

    To configure a remote (headless) Linux CrashPlan PRO client with a Windows system follow the step by step instructions below after you have installed CrashPlan PRO on your Windows and the remote system. Close the CrashPlan Application if it is open (you do not need to end the CrashPlan background backup service). Download plink.exe from […]