Category Archives: Linux

Setting up my MOTD on a Ubuntu 14.04.3 LTS

Linux, Ubuntu,

Some of my servers have a fancy motd…
I like them… unfortunately my new server didn’t had it.

I had to run

apt-get install landscape-common
dpkg-reconfigure landscape-common

On dkpg-reconfigure I’v selected Run sysinfo on every login.

Welcome to Ubuntu 14.04.3 LTS (GNU/Linux 3.13.0-63-generic x86_64)

* Documentation: https://help.ubuntu.com/
You have new mail.
Last login: Fri Oct 23 10:28:37 2015 from es2-84-XXX-XXX-XXX.netvisao.pt

System information as of Fri Oct 23 10:28:59 CEST 2015

System load: 0.06 Processes: 245
Usage of /: 81.9% of 411.33GB Users logged in: 1
Memory usage: 9% IP address for em0: 195.154.XXX.XXX
Swap usage: 0%

Graph this data and manage this system at:
https://landscape.canonical.com/
pjrfigueiredo@sd-48392:~$

To have the number of updates/security updates we need to run the following apt-get command….

sudo apt-get install update-notifier-common

This way we will see also

20 packages can be updated.
8 updates are security updates.

11354348_10153193542464733_1315224652_n

logstalgia

Linux, Metrics, ,

For a long time that I’v wanted to install logstalgia….
Todays is the day!

So, we need to download Xcode 5.1.1 (Mountain Lion) from https://developer.apple.com/downloads/.

BREW
ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
brew install wget
wget https://github.com/acaudwell/Logstalgia/releases/download/logstalgia-1.0.6/logstalgia-1.0.6.tar.gz
tar -zxvf logstalgia*.gz
cd logstalgia*

brew install pkg-config glew sdl2 SDL2_image sdl SDL_image boost GLM freetype pcre
./configure
make
make install

This should do the work.

MacPorts

Other way to install is using MacPorts – logstalgia @ macports -.

Via terminal

sudo port -p -u install "nolstalgia"

Using GUI?
You can try jportsui Java based, graphical user interface to MacPorts 2.0+.

 

If you have an old GCC verion (prior to 4.6) you might get the following errors…

Unfortunately while making “make” I had an error f*ck!

cc1plus: error: unrecognized command line option "-Wno-unused-but-set-variable"
cc1plus: error: unrecognized command line option "-std=gnu++0x"
make: *** [src/logstalgia-ncsa.o] Error 1

Why?
According to some pages GCC is to old. We need GCC 4.6, mine is 4.2.1.

gcc version 4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2336.11.00)

 

Sources / Related links

http://logstalgia.io/
http://robido.com/mac/install-logstalgia-on-mac-and-use-with-ssh-tunnels/
https://developer.apple.com/downloads/

Testing disk speed on Ubuntu

Linux, Ubuntu 
paulao@sd-XXXXX:~$ sudo dd if=/dev/zero of=/root/output conv=fdatasync bs=384k count=1k; rm -f /root/output 16:
1024+0 records in
1024+0 records out
402653184 bytes (403 MB) copied, 1.74116 s, 231 MB/s

paulao@sd-XXXXX:~$ dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync; unlink test
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 5.53976 s, 194 MB/s

Remove Apache 2.4 version signature @ Ubuntu 15.04

Linux, Ubuntu, , ,

Forbidden

You don’t have permission to access /galleries/ on this server.

 

Ubuntu 15.04
Apache/2.4.10 (Ubuntu)

Remove Apache version signature
nano /etc/apache2/conf-enabled/security.conf

On ServerTokens uncomment the line with ServerTokens Prod or add it.
Uncomment the ServerSignature Off entry or add it.

Remove PHP version from headers

I guess that by default they are disabled, but in any case you can remove it by editing the php.ini and set expose_php to off.

sudo nano /etc/php5/apache2/php.ini

How to mirror a FTP folder and subfolders – lftp

Linux,

I had to copy almost 10Gb from one server to another.
Usually I use rsync but this time the user that I have on the remove server is just an FTP user.

My first and dumb option was to use wget to fetch the content! *DUMB!*.
After a few hours/day… I got Write failed: Broken pipe.

OK!, I’v decided to use lftp.
So… I needed to install simply by doing….

apt-get install lftp

Let’s go!

Connect to the server

lftp storage.domain.org

Enter the username

user userexport

then enter the password…

and the the magic command!

mirroc -c -p

-c – resume option
-p – download files in parallel

HOORAY!, thats kinda it.

lftp [email protected]:~> mirror -c -p
Total: 2184 directories, 97729 files, 0 symlinks
New: 25548 files, 0 symlinks
9900721069 bytes transferred in 2750916 seconds (3.5 KiB/s)
lftp [email protected]:/>