Yeri Tiete

Category: Linux

  • Hint of the day: run-parts and not executing files

    If you have a rc.local looking like this: /bin/run-parts /etc/rc.local.d and files in /etc/rc.local.d looking like this hostname.sh sshkeys.sh firstboot.sh it’s not going to work. Why, you ask, after cursing and shouting for the past hour? because run-parts ignores files with dots (“.”) and/or .sh files. Yes. True story. rename all the files to: hostname…

  • Hint of the day: @digitalocean and not mounting sshfs at boot

    In /etc/fstab, be sure to add the option: _netdev As it will attempt to start the network mounted sshfs before networking has been started. The entire line looks like this: user@host:/some/dir /local/path fuse.sshfs defaults,idmap=user,_netdev  0 0 From the man pages: _netdev The filesystem resides on a device that requires network access (used to prevent the…

  • Raspberry Pi + ad blocking + nginx

    There’s this howto that explains how to set up the RPi as ad blocker. I’ve two RPi’s acting a router and was already running dnsmasq. I decided to give it a try. Note that this howto can actually be used on any DNS serving Linux server. First of all, don’t go with the pixelserv as…

  • Realtek ethernet card not working on Linux

    [ 0.184110] pci 0000:04:04.0: [10ec:8139] type 0 class 0x000200 [ 3.822258] 8139cp: 8139cp: 10/100 PCI Ethernet driver v1.3 (Mar 22, 2004) [ 3.822281] 8139cp 0000:04:04.0: This (id 10ec:8139 rev 10) is not an 8139C+ compatible chip, use 8139too [ 3.822574] 8139too: 8139too Fast Ethernet driver 0.9.28 [ 3.822625] 8139too 0000:04:04.0: Chip not responding, ignoring board…

  • Graph amount of OpenVPN users to Munin

    Rather simple script. Using log file instead of management interface. Part has to run as Root (due to Munin most likely not having access to read the log files. Working with the management interface could solve this. Create /usr/local/bin/getVpnUsers.sh: #!/bin/bash echo “VPN.value `cat /var/log/openvpn-status.log | sed -e ‘1,/Common Name/d’ | sed -e ‘/ROUTING TABLE/,$d’ |…

  • Munin + Raspberry Pi + temperature

    Quick hack to get Munin to graph the cpu temperature. First of all, install Munin and make sure it’s working. Then follow these steps: 1) We’ll use cron to write the current temp to a log file. We do this because I wasn’t able to get Munin to directly execute the command (error: temp.value VCHI initialization…

  • Unable to complete backup. An error occurred while creating the backup folder.

    5 or so days ago, this error suddenly popped up: Unable to complete backup. An error occurred while creating the backup folder. I have a Raspberry Pi, acting as TimeMachine (using afp/Bonjour/Netatalk). There are several things I tried to solve this, including messing in the sparebundle from Linux (chowning) and deleting my TM .plist. This…

  • The single most useful thing in bash

    This.

  • Postfix + maildrop + recipient_delimiter

    I suddenly noticed issues with Postfix not accepting e-mails that are tagged (“user+TAG@fqdn”) anymore. Even though it always had. Postfix main.cfg: recipient_delimiter = + Log snippet: Apr 16 13:07:52 vm-dns-mail postfix/pipe[6119]: 55D1C2005E4: to=<[email protected]>, relay=maildrop, delay=0.06, delays=0.01/0/0/0.05, dsn=5.1.1, status=bounced (user unknown. Command output: Invalid user specified. ) Tried to find what’s wrong in MySQL, change the delimiter, Debug…