Sometimes you want automated access for root on your MySQL database. One way of accomplishing that is by doing this:
/root
touch .my.cnf
chmod 640 .my.cnf
And put in it:
[client] user=root password=foobar
Author: halfgaar (Page 16 of 26)
Halfgaar is Wiebe. Wiebe is a contributing author on this weblog. He also has a lot of stuff (such as long, in-depth articles) on his personal website.
Wiebe's day job is as a senior software developer and system administrator at YTEC.
In his free time, he built the free, open-source FlashMQ software. Together with Jeroen and Rowan, he is now building a managed MQTT hosting business around his open masterpiece.
For the record, when deploying mod wsgi apps, remember to enable optimizations in mod_wsgi.conf. Otherwise debug will be true.
By default, Asterisk always plays its own vm-intro as voicemail intro. To enable the user to record their own message, the entry in extensions.conf which sends a caller to the voicemail should be:
exten => _0123456789,n,Voicemail(1@<context>|s,u)
The s is to skip the default greeting. The u is for the unavailable message. You can also say b for busy message.
‘show application voicemail’ shows usage information and all the options you can give.
When you forward a port to an internal machine on the network, you still can’t access that host using your WAN-IP from within the LAN. This article explains it well. In short, it’s because the reply the machine your connecting to makes, goes to the LAN IP directly, and not back through the router.
To fix it, we need to add a SNAT rule for that port forward as well. In the example that we want to forward port 80 to 10.50.0.4 on our 10.50.0.0/16 LAN and 10.50.0.1 is our router, these two rules are necessary:
iptables -t nat -A PREROUTING -d WANIP -p tcp --dport 80 -m comment --comment "Forward www to 10.50.0.4." -j DNAT --to-destination LANIP iptables -t nat -A POSTROUTING -p tcp --source 10.50.0.0/16 --dest 10.50.0.4 --dport 80 -j SNAT --to-source 10.50.0.1 --match comment --comment "Allow our LAN to access port 80 from the WAN side as well."
Normally when forwarding, I would not use -d WANIP, but –in-interface eth0, but that won’t work here, because the LAN requests are not on eth0.
Also, the –source in the second rule is not strictly necessery, but if you don’t specify this rule, it will also match incoming requests for the internet, which is ugly, especially if you have logging rules.
I don’t like that firefox nowadays opens new tabs after the current tab. When I open stuff, I remember in which order I opened it and I don’t want that order changed by having tabs inserted.
Change:
browser.tabs.insertRelatedAfterCurrent
to false.
Every time I want to burn media, I have to look up again what the syntax is. So, for future reference, this post.
CD ISO image:
wodim dev=/dev/sr1 -eject ubuntu-10.04-server-amd64.iso
For DVD’s it’s different. If you mimick the above command, you will have a DVD with the ISO file on it. I don’t know exactly, but you have to specify /dev/dvd=image.iso or something. When the next time I burn a DVD ISO arrives, I’ll update this post.
I wanted an Exim server which could send mail on its own without the use of another SMTP server.
First see this for some general explantion.
I used this config file:
# /etc/exim4/update-exim4.conf.conf # # Edit this file and /etc/mailname by hand and execute update-exim4.conf # yourself or use 'dpkg-reconfigure exim4-config' # # Please note that this is _not_ a dpkg-conffile and that automatic changes # to this file might happen. The code handling this will honor your local # changes, so this is usually fine, but will break local schemes that mess # around with multiple versions of the file. # # update-exim4.conf uses this file to determine variable values to generate # exim configuration macros for the configuration file. # # Most settings found in here do have corresponding questions in the # Debconf configuration, but not all of them. # # This is a Debian specific file dc_eximconfig_configtype='internet' dc_other_hostnames='existingdomain.com' dc_local_interfaces='127.0.0.1' dc_readhost='' dc_relay_domains='' dc_minimaldns='false' dc_relay_nets='' dc_smarthost='' CFILEMODE='644' dc_use_split_config='false' dc_hide_mailname='' dc_mailname_in_oh='true' dc_localdelivery='mail_spool'
Also remember to put that existingdomain.com in /etc/mailname.
For some reason, the new Thunderbird 3 thought it was useful to show me the content_encoding header per default, below the addressee and stuff. This header had such a long name that it disrupted the layout. Luckily, you can change what headers it displays by editing “mailnews.headers.extraExpandedHeaders” in the configuration editor.
I just removed the content_encoding header and it worked.
In Windows, you have to click on windows, and even window-panes, before the scrollwheel works there. With mousewiz, you can alter that behaviour, and make it like most Linux Desktops, where you scroll in the window/pane that is under the cursor.
openssl req -nodes -newkey rsa:2048 -keyout server.key -out server.csr openssl x509 -req -days 3650 server.csr -signkey server.key -out server.crt
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