How to kill all session Xvnc

  Step 1: List all processes of Xvnc [root@VTGDB.COM tmp]# ps -ef | grep Xvncroot     112273      1  1 14:22 pts/0    00:00:00 /usr/bin/Xvnc :1 -desktop VTGDB.COM:1 (root) -auth /root/.Xauthority -geometry...

How to fix: Cannot grab required information(TMOUT) from /etc/profile

[PROBLEM] Cannot grab required information(TMOUT) from /etc/profile [FIXED] Edit file /etc/profile, add following line to end of file. vi /etc/profile # set a 5 min timeout policy for bash shell TMOUT=300 readonly TMOUT export TMOUT ...

How to set an expiration date for user' password on Linux

Step 1: Open file /etc/login.defs, change option for PASS_MAX_DAYS, For example: # Password aging controls: # #       PASS_MAX_DAYS   Maximum number of days a password may be used. #       PASS_MIN_DAYS   Minimum number of days allowed between password changes. #       PASS_MIN_LEN    Minimum acceptable password...

How to install php 5.5.1.0 on linux

Step 1: Download the software https://drive.google.com/open?id=0B7a3DEnQ0-uzXzlsU04xcGdJN0E   Step 2: Untar the downloaded file [root@VTGDB.COM ~]# tar -xvf oel-dependency-install.tar.gz oel-dependency-install/ oel-dependency-install/dependency-install.sh oel-dependency-install/._libjpeg-turbo-1.2.1-3.el6_5.x86_64.rpm oel-dependency-install/libjpeg-turbo-1.2.1-3.el6_5.x86_64.rpm oel-dependency-install/._openssl-1.0.1e-16.el6_5.x86_64.rpm oel-dependency-install/openssl-1.0.1e-16.el6_5.x86_64.rpm oel-dependency-install/oracle-instantclient12.1-basic-12.1.0.1.0-1.x86_64.rpm oel-dependency-install/oracle-instantclient12.1-sqlplus-12.1.0.1.0-1.x86_64.rpm oel-dependency-install/php55-5.5.10-1.el6.x86_64.rpm oel-dependency-install/php55-bcmath-5.5.10-1.el6.x86_64.rpm oel-dependency-install/php55-cli-5.5.10-1.el6.x86_64.rpm oel-dependency-install/php55-common-5.5.10-1.el6.x86_64.rpm oel-dependency-install/php55-dba-5.5.10-1.el6.x86_64.rpm oel-dependency-install/php55-fpm-5.5.10-1.el6.x86_64.rpm oel-dependency-install/php55-gd-5.5.10-1.el6.x86_64.rpm oel-dependency-install/php55-intl-5.5.10-1.el6.x86_64.rpm oel-dependency-install/php55-ldap-5.5.10-1.el6.x86_64.rpm oel-dependency-install/php55-mbstring-5.5.10-1.el6.x86_64.rpm oel-dependency-install/php55-mysql-5.5.10-1.el6.x86_64.rpm oel-dependency-install/php55-oci8-12cR1-5.5.10-2.el6.x86_64.rpm oel-dependency-install/php55-opcache-5.5.10-1.el6.x86_64.rpm oel-dependency-install/php55-pdo-5.5.10-1.el6.x86_64.rpm oel-dependency-install/php55-xml-5.5.10-1.el6.x86_64.rpm Step...

SSH Login & SCP Without Password Using ssh-keygen & ssh-copy-id

admin@local-host$ ssh-keygen Generating public/private rsa key pair. Enter file in which to save the key (/home/admin/.ssh/id_rsa):[Enter key] Enter passphrase (empty for no passphrase): [Press enter key] Enter same passphrase again: [Press enter key] Your identification has been saved in /home/admin/.ssh/id_rsa. Your public key has been saved in /home/admin/.ssh/id_rsa.pub. The...

Install Redhat 6

Link https://www.facebook.com/cold.xxboy/videos/102050212184824...

How to allow a OS user running crontab

[root@PTUD-VM03-1 ~]# more /etc/cron.allow root orac...

How to vncviewer with your size

$ vncserver -geometry 1920x108...

How to see files'size and sort them on one folder Linux

[oracle@PTUD-VM02-2 datafile]$ ls --reverse --sort=size  -sh ...

How to start network linux automatically

Step 1: Check your network [root@PTUDServer3 ~]# ifconfig -a eth0      Link encap:Ethernet  HWaddr 74:46:A0:98:D0:BE            inet addr:192.168.2.133  Bcast:10.61.118.255  Mask:255.255.255.0           inet6 addr: fe80::7646:a0ff:fe98:d0be/64...

Forwarding Network

Describe: End User cannot access Server B via port 8000. End User can access Server A via port 8000. How to End User can access application on Server B which running port 8000? Before Forwarding, end user cannot access via 8000. Details: 1. Check Port Forwarding: ...

create an user OS which has privilege like root user

I will create user "bigdata" which has privilege like root user [root@PTUD-VM02-4 ~]# chmod 640 /etc/sudoers [root@PTUD-VM02-4 ~]# vi /etc/sudoers ## Allow root to run any commands anywhere root    ALL=(ALL)       ALL bigdata    ALL=(ALL)       ALL [root@PTUD-VM02-4 ~]# chmod 440 /etc/sudoers ...

Adding User on linux

[root@PTUD-VM01-2 ~]# df -h Filesystem            Size  Used Avail Use% Mounted on /dev/mapper/vg_ptudvm011-LogVol00                        20G  8.5G   11G  46% / tmpfs                 7.8G   72K  7.8G   1% /dev/shm /dev/sda1...

Check connection to Linux server

Syntax: traceroute -nT   -p Example: [root@ptud ~]# traceroute -nT 10.79.255.87 -p 22 traceroute to 10.79.255.87 (10.79.255.87), 30 hops max, 60 byte packets  1  192.168.2.158  0.511 ms  1.071 ms  1.320 ms  2  192.168.2.1  9.100 ms  9.121 ms  9.105 ms  3  10.79.255.253  16.590 ms  16.575 ms  16.555...

How to set security ssh on linux

[root@App1 ~]# vi /etc/ssh/sshd_config ### insert the command to apply only monitor, survey, oam user OS can ssh from anywhere, others ### cannot ssh from other machine AllowUsers monitor survey oam Now, Restart sshd [root@App1 ~]# /etc/init.d/sshd restart Stopping sshd:                              ...

How to fix error while loading shared libraries: libgcc_s.so.1: cannot open shared object file: No such file or directory

[root@vcr-broadcast2 tmp]# rpm -q libgc rpm: error while loading shared libraries: libgcc_s.so.1: cannot open shared object file: No such file or directory [root@vcr-broadcast2 tmp]# [root@vcr-broadcast2 tmp]# export LD_LIBRARY_PATH=${prefix}/lib:$LD_LIBRARY_PAT...

RPM to install packets for Redhat using option --nodeps

Install Packet [root@vcr-broadcast2 setup]# rpm -ivh glibc-headers-2.21.90-18.fc24.i686.rpm  error: Failed dependencies: glibc = 2.21.90-18.fc24 is needed by glibc-headers-2.21.90-18.fc24.i686 kernel-headers is needed by glibc-headers-2.21.90-18.fc24.i686 kernel-headers >= 2.2.1 is needed by glibc-headers-2.21.90-18.fc24.i686 [root@vcr-broadcast2 setup]# rpm -ivh --nodeps...

See version of Red hat or Centos

[oracle@ptudvtg149 PT8.54]$ cat /etc/redhat-release  Red Hat Enterprise Linux Server release 6.5 (Santiag...

Scripts see Memory Static every 5 seconds

[oracle@ptud1 PT8.54]$ more tho.sh while true do free echo "-----VTG-----------" $(date) "-----------------" sleep 5 done [oracle@ptud1 PT8.54]$ sh tho.sh              total       used       free     shared    buffers     cached Mem:       8062556    7894200...

Simply Example of grep on linux

Do you want to find content of file on directory on linux? I'd like to give you a simply command to do that. Syntax: grep -ril {content what you want to search} {path of the directory} Example: [oracle@ptud1 unix]$ grep -ril "grant select" . ./psroles.sql ./psroles.log ./connect.sql ./connect.log ./pdb/psroles2.sql ./pdb/connect.sql [oracle@ptud1 unix...