Linux Conquering Cloud

1. List all Open Files with lsof Command

In the below example, it will show long listing of open files some of them are extracted for better understanding which displays the columns like Command, PID, USER, FD, TYPE etc.

# lsof

COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
init 1 root cwd DIR 253,0 4096 2 /

Sections and it’s values are self-explanatory. However, we’ll review FD & TYPE columns more precisely.

FD – stands for File descriptor and may seen some of the values as:

cwd current working directory
rtd root directory
txt program text (code and data)
mem memory-mapped file

Also in FD column numbers like 1u is actual file descriptor and followed by u,r,w of it’s mode as:

r for read access.
w for write access.
u for read and write access.

TYPE – of files and it’s identification.

DIR – Directory
REG – Regular file
CHR – Character special file.
FIFO – First In First Out

2. List User Specific Opened Files

# lsof -u user

COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
sshd 1838 user cwd DIR 253,0 4096 2 /
sshd 1838 user rtd DIR 253,0 4096 2 /

3. Find Processes running on Specific Port

To find out all the running process of specific port, just use the following command with option -i. The below example will list all running process of port 22.

# lsof -i TCP:22

COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
sshd 1471 root 3u IPv4 12683 0t0 TCP *:ssh (LISTEN)
sshd 1471 root 4u IPv6 12685 0t0 TCP *:ssh (LISTEN)

4. List Only IPv4 & IPv6 Open Files

In below example shows only IPv4 and IPv6 network files open with separate commands.

# lsof -i 4

COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
rpcbind 1203 rpc 6u IPv4 11326 0t0 UDP *:sunrpc
rpcbind 1203 rpc 7u IPv4 11330 0t0 UDP *:954

# lsof -i 6

COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
rpcbind 1203 rpc 9u IPv6 11333 0t0 UDP *:sunrpc
rpcbind 1203 rpc 10u IPv6 11335 0t0 UDP *:954

5. List Open Files of TCP Port ranges 1-1024

To list all the running process of open files of TCP Port ranges from 1-1024.

# lsof -i TCP:1-1024

COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
rpcbind 1203 rpc 11u IPv6 11336 0t0 TCP *:sunrpc (LISTEN)

6. Exclude User with ‘^’ Character

Here, we have excluded root user. You can exclude a particular user using ‘^’ with command as shown above.

# lsof -i -u^root

COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
rpcbind 1203 rpc 6u IPv4 11326 0t0 UDP *:sunrpc
rpcbind 1203 rpc 7u IPv4 11330 0t0 UDP *:954
rpcbind 1203 rpc 8u IPv4 11331 0t0 TCP *:sunrpc (LISTEN)

7. Find Out who’s Looking What Files and Commands?

Below example shows user user is using command like ping and /etc directory .

# lsof -i -u user

COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
bash 1839 user cwd DIR 253,0 12288 15 /etc
ping 2525 user cwd DIR 253,0 12288 15 /etc

8. List all Network Connections

The following command with option ‘-i’ shows the list of all network connections ‘LISTENING & ESTABLISHED’.

# lsof -i

COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
rpcbind 1203 rpc 6u IPv4 11326 0t0 UDP *:sunrpc
rpcbind 1203 rpc 7u IPv4 11330 0t0 UDP *:954

9. Search by PID

The below example only shows whose PID is 1 [One].

# lsof -p 1

COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
init 1 root cwd DIR 253,0 4096 2 /
init 1 root rtd DIR 253,0 4096 2 /

10. Kill all Activity of Particular User

Sometimes you may have to kill all the processes for a specific user. Below command will kills all the processes of user user.

# kill -9 `lsof -t -u user`

yum install gcc gcc-c++ libgcc gd gd-devel gettext freetype \
freetype-devel ImageMagick ImageMagick-devel libjpeg* libjpeg-devel* \
libpng* libpng-devel* libstdc++* libstdc++-devel* libtiff* \
libtiff-devel* libtool* libungif* libungif-deve* libxml* libxml2* \
libxml2-devel* zlib* zlib-devel* automake* autoconf* samba-common* \
ncurses-devel ncurses patch make -y

mkdir /usr/src/ffmpegscript

mkdir /usr/local/cpffmpeg

==================
libwmf-0.2.8.3.tar.gz
==================
ldconfig
cd /usr/src/ffmpegscript
wget https://www.dropbox.com/s/177e3hskscfvkfa/libwmf-0.2.8.3.tar.gz
tar -zxvf libwmf-0.2.8.3.tar.gz
cd libwmf-0.2.8.3/
./configure --prefix=/usr/local/cpffmpeg
make
make install

====================
ruby-1.8.6.tar.gz
====================
ldconfig
cd /usr/src/ffmpegscript
wget https://www.dropbox.com/s/45q2nalubstz5jk/ruby-1.8.6.tar.gz
tar -zxvf ruby-1.8.6.tar.gz
cd ruby-1.8.6/
./configure --prefix=/usr/local/cpffmpeg
make
make install

=====================
flvtool2_1.0.5_rc6.tgz
=====================
ldconfig
cd /usr/src/ffmpegscript
wget https://www.dropbox.com/s/hppyhpev0ylyi8f/flvtool2_1.0.5_rc6.tgz
tar -zxvf flvtool2_1.0.5_rc6.tgz
cd flvtool2_1.0.5_rc6
/usr/local/cpffmpeg/bin/ruby setup.rb config
/usr/local/cpffmpeg/bin/ruby setup.rb setup
/usr/local/cpffmpeg/bin/ruby setup.rb install
ln -s /usr/local/cpffmpeg/bin/flvtool2 /usr/local/bin/flvtool2
ln -s /usr/local/cpffmpeg/bin/flvtool2 /usr/bin/flvtool2

====================
lame-3.97.tar.gz
====================
ldconfig
cd /usr/src/ffmpegscript
wget https://www.dropbox.com/s/vd99zooleq1rlgv/lame-3.97.tar.gz
tar -zxvf lame-3.97.tar.gz
cd lame-3.97
./configure --prefix=/usr/local/cpffmpeg --enable-mp3x --enable-mp3rtp
make
make install

======================
all-20071007.tar.bz2
======================
ldconfig
cd /usr/src/ffmpegscript
wget https://www.dropbox.com/s/5mvcho608fagu8r/all-20071007.tar.bz2
tar -xvjf all-20071007.tar.bz2
chown -R root.root all-20071007/
mkdir -pv /usr/local/cpffmpeg/lib/codecs/
cp -vrf all-20071007/* /usr/local/cpffmpeg/lib/codecs/
chmod -R 755 /usr/local/cpffmpeg/lib/codecs/

====================
libogg-1.1.3.tar.gz
====================
ldconfig
cd /usr/src/ffmpegscript
wget https://www.dropbox.com/s/1t33o4r1qpx2jv2/libogg-1.1.3.tar.gz
tar -xvzf libogg-1.1.3.tar.gz
cd libogg-1.1.3/
./configure --prefix=/usr/local/cpffmpeg
make
make install

====================
libvorbis-1.1.2.tar.gz
====================
ldconfig
cd /usr/src/ffmpegscript
wget https://www.dropbox.com/s/cc8rb3ikk8zjr37/libvorbis-1.1.2.tar.gz
tar -xvzf libvorbis-1.1.2.tar.gz
cd libvorbis-1.1.2
/configure --prefix=/usr/local/cpffmpeg
make
make install

=====================
vorbis-tools-1.1.1.tar.gz
=====================
ldconfig
cd /usr/src/ffmpegscript
wget https://www.dropbox.com/s/3gif7xywt42e1aa/vorbis-tools-1.1.1.tar.gz
tar -xvzf vorbis-tools-1.1.1.tar.gz
cd vorbis-tools-1.1.1/
./configure --prefix=/usr/local/cpffmpeg
make
make install

========================
libtheora-1.0alpha7.tar.gz
========================
ldconfig
cd /usr/src/ffmpegscript
wget https://www.dropbox.com/s/os8jkmj20bppb9t/libtheora-1.0alpha7.tar.gz
tar -xvzf libtheora-1.0alpha7.tar.gz
cd libtheora-1.0alpha7/
./configure --prefix=/usr/local/cpffmpeg --with-ogg=$INSTALL_DDIR --with-vorbis=$INSTALL_DDIR
make
make install

==========================
amrnb-7.0.0.1.tar.bz2
==========================
ldconfig
cd /usr/src/ffmpegscript
wget https://www.dropbox.com/s/di95tlyrkip4asw/amrnb-7.0.0.1.tar.bz2
tar -xvjf amrnb-7.0.0.1.tar.bz2
cd amrnb-7.0.0.1/
./configure --prefix=/usr/local/cpffmpeg
make
make install

==========================
amrwb-7.0.0.2.tar.bz2
==========================
ldconfig
cd /usr/src/ffmpegscript
wget https://www.dropbox.com/s/xl4utvgikqkwpgl/amrwb-7.0.0.2.tar.bz2
tar -xvjf amrwb-7.0.0.2.tar.bz2
cd amrwb-7.0.0.2/
./configure --prefix=/usr/local/cpffmpeg
make
make install

=========================
a52dec-0.7.4.tar.gz
=========================
ldconfig
cd /usr/src/ffmpegscript
wget https://www.dropbox.com/s/eaugb32ppzbmmyo/a52dec-0.7.4.tar.gz
tar -xvzf a52dec-0.7.4.tar.gz
cd a52dec-0.7.4/
./bootstrap
ARCh=`arch`
#64bit processor bug fix
if [[ $ARCh == 'x86_64' ]];then
./configure --prefix=/usr/local/cpffmpeg --enable-shared 'CFLAGS=-fPIC'

else
./configure --prefix=/usr/local/cpffmpeg --enable-shared
fi
make
make install

==========================
faac-1.26.tar.gz
==========================
ldconfig
cd /usr/src/ffmpegscript
wget https://www.dropbox.com/s/55y56ud5quqtssa/faac-1.26.tar.gz
tar -xvzf faac-1.26.tar.gz
cd faac/
./bootstrap
./configure --prefix=/usr/local/cpffmpeg --with-mp4v2
make
make install

============================
faad2-2.6.1.tar.gz
============================
ldconfig
cd /usr/src/ffmpegscript
wget https://www.dropbox.com/s/zwk4gcxkk3km0ge/faad2-2.6.1.tar.gz
tar -xvzf faad2-2.6.1.tar.gz
cd faad2/
./bootstrap
./configure --prefix=/usr/local/cpffmpeg --with-mpeg4ip
make
make install

=========================
yasm-0.6.1.tar.gz
=========================
ldconfig
cd /usr/src/ffmpegscript
wget https://www.dropbox.com/s/facxu4ofmxdz7cb/yasm-0.6.1.tar.gz
tar -xvzf yasm-0.6.1.tar.gz
cd yasm-0.6.1/
./configure --prefix=/usr/local/cpffmpeg/
make
make install
ln -sf /usr/local/cpffmpeg/bin/yasm /usr/local/bin/yasm
ldconfig

========================
nasm-2.02.tar.gz
========================
ldconfig
cd /usr/src/ffmpegscript
wget https://www.dropbox.com/s/a6jkolmxva0jxmv/nasm-2.02.tar_2.gz
tar -xvzf nasm-2.02.tar.gz
cd nasm-2.02/
./configure --prefix=/usr/local/cpffmpeg/
make
make install
ln -sf /usr/local/cpffmpeg/bin/nasm /usr/local/bin/nasm
ldconfig

=======================
xvidcore-1.1.0.tar.gz
=======================
ldconfig
cd /usr/src/ffmpegscript
wget https://www.dropbox.com/s/iqpwt8qkjja6m5f/xvidcore-1.1.0.tar.bz2
tar -xvzf tar -xvzf $_package
cd xvidcore-1.1.0/build/generic/
./configure --prefix=/usr/local/cpffmpeg/
make
make install

========================
x264-snapshot-20080516-2245.tar.gz
========================
ldconfig
cd /usr/src/ffmpegscript
wget https://www.dropbox.com/s/wzd3215mvygwy6o/x264-snapshot-20080516-2245.tar.gz
tar -xvzf x264-snapshot-20080516-2245.tar.gz
cd x264-snapshot-20080516-2245/
./configure --enable-shared
make
make install

========================
re2c-0.13.4.tar.gz
========================
ldconfig
cd /usr/src/ffmpegscript
wget https://www.dropbox.com/s/7gua46n3t2clvgo/re2c-0.13.5.tar.gz
tar -xvzf re2c-0.13.5.tar.gz
cd re2c-0.13.5/
./configure --prefix=/usr/local/cpffmpeg/
make
make install
ln -s /usr/local/cpffmpeg/bin/re2c /usr/local/bin/re2c

=========================
MPlayer-1.0rc1.tar.bz2
=========================
ldconfig
cd /usr/src/ffmpegscript
wget https://www.dropbox.com/s/mxd56u8pgmmdm30/MPlayer-1.0rc1.tar.bz2
tar -xvjf MPlayer-1.0rc1.tar.bz2
cd MPlayer-1.0rc1/
./configure --prefix=/usr/local/cpffmpeg/ --with-codecsdir=/usr/local/cpffmpeg/lib/codecs/ \
--with-extraincdir=/usr/local/cpffmpeg/include --with-extralibdir=/usr/local/cpffmpeg/lib
make
make install
cp -f etc/codecs.conf /usr/local/cpffmpeg/etc/mplayer/codecs.conf
ln -sf /usr/local/cpffmpeg/bin/mplayer /usr/local/bin/mplayer
ln -sf /usr/local/cpffmpeg/bin/mplayer /usr/bin/mplayer
ln -sf /usr/local/cpffmpeg/bin/mencoder /usr/bin/mencoder
ln -sf /usr/local/cpffmpeg/bin/mencoder /usr/local/bin/mencoder

=========================
ffmpeg-SVN-r14473.tar.gz
=========================
ldconfig
cd /usr/src/ffmpegscript
wget https://www.dropbox.com/s/lmvpaz0e7hgirab/ffmpeg-SVN-r14473.tar.gz
tar -xvzf ffmpeg-SVN-r14473.tar.gz
cd ffmpeg/
ldconfig
./configure --prefix=/usr/local/cpffmpeg --enable-shared --enable-nonfree \
--enable-gpl --enable-pthreads --enable-liba52 --enable-libamr-nb \
--enable-libamr-wb --enable-libfaac --enable-libfaad --enable-libmp3lame \
--enable-libtheora --enable-libvorbis --enable-libx264 --enable-libxvid \
--extra-cflags=-I/usr/local/cpffmpeg/include/ --extra-ldflags=-L/usr/local/cpffmpeg/lib \
--enable-cross-compile
make
make tools/qt-faststart
make install
cp -vf tools/qt-faststart /usr/local/cpffmpeg/bin/
ln -sf /usr/local/cpffmpeg/bin/ffmpeg /usr/local/bin/ffmpeg
ln -sf /usr/local/cpffmpeg/bin/ffmpeg /usr/bin/ffmpeg
ln -sf /usr/local/cpffmpeg/bin/qt-faststart /usr/local/bin/qt-faststart
ln -sf /usr/local/cpffmpeg/bin/qt-faststart /usr/bin/qt-faststart
ldconfig
/usr/bin/ffmpeg -formats

=============================
=========================
MPlayer-1.0rc1.tar.bz2
=========================
ldconfig
cd /usr/src/ffmpegscript
wget https://www.dropbox.com/s/mxd56u8pgmmdm30/MPlayer-1.0rc1.tar.bz2
tar -xvjf MPlayer-1.0rc1.tar.bz2
cd MPlayer-1.0rc1/
./configure --prefix=/usr/local/cpffmpeg/ --with-codecsdir=/usr/local/cpffmpeg/lib/codecs/ \
--with-extraincdir=/usr/local/cpffmpeg/include --with-extralibdir=/usr/local/cpffmpeg/lib
make
make install
cp -f etc/codecs.conf /usr/local/cpffmpeg/etc/mplayer/codecs.conf
ln -sf /usr/local/cpffmpeg/bin/mplayer /usr/local/bin/mplayer
ln -sf /usr/local/cpffmpeg/bin/mplayer /usr/bin/mplayer
ln -sf /usr/local/cpffmpeg/bin/mencoder /usr/bin/mencoder
ln -sf /usr/local/cpffmpeg/bin/mencoder /usr/local/bin/mencoder

=============================

export LD_LIBRARY_PATH=/usr/local/cpffmpeg/lib:/usr/local/lib:/usr/lib:$LD_LIBRARY_PATH
export LIBRARY_PATH=/usr/local/cpffmpeg/lib:/usr/lib:/usr/local/lib:$LIBRARY_PATH
export CPATH=/usr/local/cpffmpeg/include:/usr/include/:usr/local/include:$CPATH

=========================
ffmpeg-php-0.5.3.1.tbz2
=========================
ldconfig
cd /usr/src/ffmpegscript
wget https://www.dropbox.com/s/o5shxs6zsxps7ur/ffmpeg-php-0.5.3.1.tbz2
tar -jxvf ffmpeg-php-0.5.3.1.tbz2
cd ffmpeg-php-0.5.3.1/
phpize
./configure --enable-shared --with-ffmpeg=/usr/local/cpffmpeg
make -
make install

=====================
echo '[PHP]' > $PHP_INI
echo " " >> $PHP_INI
echo "extension_dir = \"$EXTENSION_DIR\" " >> $PHP_INI
echo "post_max_size = 200M " >> $PHP_INI
echo "upload_max_filesize = 200M " >> $PHP_INI
echo "extension=ffmpeg.so" >>$PHP_INI
echo " " >> $PHP_INI
cat $PHP_INI.ffmpeg >> $PHP_INI
=====================

Linux Conquering Cloud

Pages

Thursday, February 14, 2013

Disabling Mod-Security for a single account

Wednesday, February 13, 2013

lsof--List all Open Files with lsof Command

Tuesday, February 12, 2013

FFMPEG installation along with all support modules