Raspberry pi has a feature where when it's connected to a LAN, you can find its IP using raspberrypi.local (source). It mentions multicast DNS.
I'd like to do this for my own linux devices on LAN, giving them names of my choice (e.g. "xyz.local") how can it be achieved?
I have a script that creates large temporary files.
I'm inclined to use tmpfs for this, however I did a quick search for tmpfs performance and found this which reports speed as about 2GiB/s.
Modern NVME SSDs have comparable speeds. Putting aside differences other than performance (e.g. longer SSD life by not touching disk, SSDs having a larger while RAM is limited), are there any performance advantages of using tmpfs over SSDs?
Often when looking at new software, I like to install it in a docker container and try it out before I commit to either
So I open up a brand new container using docker run --rm -it debian bash and then I find myself installing a bunch of basic utilities like wget and doing apt-updates.
I figure that this might be a common use case. Are there any docker images which are suited for this, before I decide to roll out my own?
I'm using apt-cache-ng which acts as a proxy between my docker build and apt packages server, so all my downloads through apt-get are cached.
I'd like to do something similar for files that I wget. For example, to install latest version of scala, I can't get it from apt and need to install it from a .deb file downloaded from their website.
Is there an easy way to cache wget calls made (maybe all HTTP(S) calls made for file downloads) when I'm building with docker?
I had recently upgraded to php 5.4 but it was not working for me so I thought I'd remove php 5.4 and re-install php 5.3.
I uninstalled php5.4, removed the dotdeb sources from sources.list file, ran apt-get update, reinstalled php5, but it still installed php 5.4 from dotdeb, instead of using original debian repositories.
Here's what dpkg -l | grep php returns
# dpkg -l | grep php
ii libapache2-mod-php5 5.4.4-15 server-side , HTML-embedded scripting language (Apache 2 module)
rc libapache2-mod-php5filter 5.4.16-1~dotdeb.0 server-side , HTML-embedded scripting language (apache 2 filter module)
rc libapache2-mod-suphp 0.7.1-1 Apache2 mod ule to run php scripts with the owner permissions
rc php-pear 5.3.3-7+squeeze15 PEAR - PHP Extension and Application Repository
ii php5 5.4.4-15 server-side , HTML-embedded scripting language (metapackage)
rc php5-cgi 5.4.16-1~dotdeb.0 server-side , HTML-embedded scripting language (CGI binary)
ii php5-cli 5.4.4-15 command-lin e interpreter for the php5 scripting language
ii php5-common 5.4.4-15 Common file s for packages built from the php5 source
rc php5-curl 5.4.16-1~dotdeb.0 CURL module for php5
rc php5-gd 5.4.16-1~dotdeb.0 GD module f or php5
rc php5-imagick 5.4.16-1~dotdeb.0 imagick mod ule for php5
rc php5-imap 5.4.16-1~dotdeb.0 IMAP module for php5
rc php5-intl 5.4.16-1~dotdeb.0 internation alisation module for php5
rc php5-mcrypt 5.4.16-1~dotdeb.0 MCrypt modu le for php5
rc php5-mysql 5.4.16-1~dotdeb.0 MySQL modul e for php5
rc php5-mysqlnd 5.4.16-1~dotdeb.0 MySQL modul e for php5 (Native Driver)
rc php5-pgsql 5.4.16-1~dotdeb.0 PostgreSQL module for php5
rc php5-pspell 5.4.16-1~dotdeb.0 pspell modu le for php5
rc phpmyadmin 4:3.4.11.1-2 MySQL web a dministration tool
rc suphp-common 0.7.1-1 Common file s for mod suphp
I'm trying to detect bad bot activity. If the information.php, which is disallowed in robots.txt but is open for normal users, has been requested more than 500 times in a day by same IP address, I'd say its a safe bet to mark the user as a bot.
Also, if I get more than 100 bad login requests from an IP address, I'd like to mark that as bot activity. (although I think I'd be better off presenting the user with a captcha after 1 bad login attempt, but an IP-based solution will be a bit difficult to implement than a session cookie based solution IMO)
And finally, I'd like to block the IPs that have been marked for bot activity. How do I go about doing all this?