Primeiro instale o TightVNC server. Utilizando o comando abaixo:
# apt-get install tightvncserver
Configurar o servidor VNC para poder logar com o usuário que terá acesso ao servidor
# vncserver &
Será solicitado o cadastro de uma senha de acesso.
Após isso, será criado um diretorio oculto no home do usuário.
Edite esse arquivo
# vi ~/.vnc/xstartup
Esta copia do xstartup esta configurada para acessar o Gnome.
#!/bin/sh
xrdb $HOME/.Xresources
xsetroot -solid black
gnome-session &
Crie no /etc/init.d/ o arquivo vncserver
# vi /etc/init.d/vncserver
E entre com o conteúdo abaixo:
#!/bin/sh -e
### BEGIN INIT INFO
# Provides: vncserver
# Required-Start: networking
# Default-Start: 3 4 5
# Default-Stop: 0 6
### END INIT INFO
PATH="$PATH:/usr/X11R6/bin/"
# The Username:Group that will run VNC
export USER="usuario de acesso ao VNC"
#${RUNAS}
# The display that VNC will use
DISPLAY="1"
# Color depth (between 8 and 32)
DEPTH="16"
# The Desktop geometry to use.
#GEOMETRY="<WIDTH>x<HEIGHT>"
#GEOMETRY="800x600"
GEOMETRY="1024x768"
#GEOMETRY="1280x1024"
# The name that the VNC Desktop will have.
NAME="my-vnc-server"
OPTIONS="-name ${NAME} -depth ${DEPTH} -geometry ${GEOMETRY} :${DISPLAY}"
. /lib/lsb/init-functions
case "$1" in
start)
log_action_begin_msg "Starting vncserver for user '${USER}' on localhost:${DISPLAY}"
su ${USER} -c "/usr/bin/vncserver ${OPTIONS}"
;;
stop)
log_action_begin_msg "Stoping vncserver for user '${USER}' on localhost:${DISPLAY}"
su ${USER} -c "/usr/bin/vncserver -kill :${DISPLAY}"
;;
restart)
$0 stop
$0 start
;;
esac
exit 0
Execute o comando abaixo para deixar inicialização automática
# chmod a+x /etc/init.d/vncserver
# update-rc.d vncserver 99
Iniciar o vncserver e testar
# /etc/init.d/vncserver start
quarta-feira, 29 de maio de 2013
Instalar o PHP5 com suporte ao ORACLE no Debian Squeeze
Neste procedimento foi utilizado o ambiente abaixo.
Debian 6
Apache 2.2
Php 5.3.3-7
Oci8
Requisitos
Instale os pacotes abaixo:
# apt-get install php5-dev build-essential php-pear alien libaio1
Oracle
http://www.oracle.com/technetwork/database/features/instant-client/index-097480.html
Faça o download do Oracle dependendo do seu sistema operacional
Basic – oracle-instantclient11.2-basic-11.2.0.1.0-1.i386.rpm
Devel – oracle-instantclient11.2-devel-11.2.0.2.0.i386.rpm
Após concluído o download, execute o comando para converter os arquivos rpm para deb
# alien oracle-instantclient11.2-basic-11.2.0.1.0-1.i386.rpm
# alien oracle-instantclient11.2-devel-11.2.0.2.0.i386.rpm
Instale os pacotes debian
# dpkg -i oracle-instantclient11.2-basic-11.2.0.1.0-1.i386.deb
# dpkg -i oracle-instanclient11.2.-devel-11.2.02.0-1.i386.deb
OCI
Instalando o pacote OCI8
# pecl install oci8
Obs: Será solicitado o caminho do oracle client, deixe em branco e pressione enter que ele encontrará automaticamente.
Configurando o PHP.
OCI8 instalado agora é só informar ao PHP para utilizar a extensão.
Crie um arquivo chamado oci8.ini com o conteúdo: extension=oci8.so
Salve o arquivo na pasta /etc/php5/conf.d/ e reinicie o Apache.
Reinicie o apache
# /etc/init.d/apache restart
Diretórios Oracle
Crie os diretórios de configuração
# mkdir -p '/usr/lib/oracle/11.2/client/network/admin'
Variáveis do ORACLE
edite o arquivo /etc/init.d/apache2 inclua as seguintes linhas
ORACLE_HOME='/usr/lib/oracle/11.2/client'
ORACLE_SID=NBS
TNS_ADMIN=${ORACLE_HOME}/network/admin
export ORACLE_HOME
export ORACLE_SID
export TNS_ADMIN
export LD_LIBRARY_PATH=${ORACLE_HOME}/lib:${LD_LIBRARY_PATH}
echo "Oracle Home: $ORACLE_HOME"
echo "Oracle SID: $ORACLE_SID"
echo "Oracle LD_LIBRARY_PATH: $ORACLE_HOME"
echo "Oracle TNS_ADMIN: $TNS_ADMIN"
echo Starting Apache
Arquivo PHP para testar.
conexao.php
//oracle connection variables
$ora_user = 'USUARIO'; //username
$ora_pass = 'SENHA DO BANCO'; //user password
$ora_host = 'IP DO SERVIDOR OU HOSTNAME"'; //host name or server ip address
$ora_db = 'NOME DO BANCO'; //database name
// place variable into oci_connect function, then place funtion in variable
$ora_conn = oci_connect($ora_user,$ora_pass,'//'.$ora_host.'/'.$ora_db);
// error handling
if (!ora_conn){ // if variable $ora_conn fails to connect
// do the following if it fails
$ora_conn_erno = oci_error(); // insert oci_error() function into variable
echo ($ora_conn_erno['message']."\n"); // print the $ora_conn_erno variable/oci_error() function selecting only the message (human readable)
oci_close($ora_conn); // close the connection just in case php doesn't close it
} else {
// if it doesn't fail it will proceed with the rest of the script
echo "Connection Succesful\n"; //echo message if connection does not error
oci_close($ora_conn); // close the connection
}
?>
Debian 6
Apache 2.2
Php 5.3.3-7
Oci8
Requisitos
Instale os pacotes abaixo:
# apt-get install php5-dev build-essential php-pear alien libaio1
Oracle
http://www.oracle.com/technetwork/database/features/instant-client/index-097480.html
Faça o download do Oracle dependendo do seu sistema operacional
Basic – oracle-instantclient11.2-basic-11.2.0.1.0-1.i386.rpm
Devel – oracle-instantclient11.2-devel-11.2.0.2.0.i386.rpm
Após concluído o download, execute o comando para converter os arquivos rpm para deb
# alien oracle-instantclient11.2-basic-11.2.0.1.0-1.i386.rpm
# alien oracle-instantclient11.2-devel-11.2.0.2.0.i386.rpm
Instale os pacotes debian
# dpkg -i oracle-instantclient11.2-basic-11.2.0.1.0-1.i386.deb
# dpkg -i oracle-instanclient11.2.-devel-11.2.02.0-1.i386.deb
OCI
Instalando o pacote OCI8
# pecl install oci8
Obs: Será solicitado o caminho do oracle client, deixe em branco e pressione enter que ele encontrará automaticamente.
Configurando o PHP.
OCI8 instalado agora é só informar ao PHP para utilizar a extensão.
Crie um arquivo chamado oci8.ini com o conteúdo: extension=oci8.so
Salve o arquivo na pasta /etc/php5/conf.d/ e reinicie o Apache.
Reinicie o apache
# /etc/init.d/apache restart
Diretórios Oracle
Crie os diretórios de configuração
# mkdir -p '/usr/lib/oracle/11.2/client/network/admin'
Variáveis do ORACLE
edite o arquivo /etc/init.d/apache2 inclua as seguintes linhas
ORACLE_HOME='/usr/lib/oracle/11.2/client'
ORACLE_SID=NBS
TNS_ADMIN=${ORACLE_HOME}/network/admin
export ORACLE_HOME
export ORACLE_SID
export TNS_ADMIN
export LD_LIBRARY_PATH=${ORACLE_HOME}/lib:${LD_LIBRARY_PATH}
echo "Oracle Home: $ORACLE_HOME"
echo "Oracle SID: $ORACLE_SID"
echo "Oracle LD_LIBRARY_PATH: $ORACLE_HOME"
echo "Oracle TNS_ADMIN: $TNS_ADMIN"
echo Starting Apache
Arquivo PHP para testar.
conexao.php
//oracle connection variables
$ora_user = 'USUARIO'; //username
$ora_pass = 'SENHA DO BANCO'; //user password
$ora_host = 'IP DO SERVIDOR OU HOSTNAME"'; //host name or server ip address
$ora_db = 'NOME DO BANCO'; //database name
// place variable into oci_connect function, then place funtion in variable
$ora_conn = oci_connect($ora_user,$ora_pass,'//'.$ora_host.'/'.$ora_db);
// error handling
if (!ora_conn){ // if variable $ora_conn fails to connect
// do the following if it fails
$ora_conn_erno = oci_error(); // insert oci_error() function into variable
echo ($ora_conn_erno['message']."\n"); // print the $ora_conn_erno variable/oci_error() function selecting only the message (human readable)
oci_close($ora_conn); // close the connection just in case php doesn't close it
} else {
// if it doesn't fail it will proceed with the rest of the script
echo "Connection Succesful\n"; //echo message if connection does not error
oci_close($ora_conn); // close the connection
}
?>
Habilitar multipath no debian 4 e 5 utilizando o XIV
Instalar os pacotes abaixo:
# aptitude install multipath-tools-boot multipath-tools firmware-qlogic firmware-bnx2 sysfsutils
# reboot
Criar o arquivo multipath.conf com o conteudo abaixo:
###############################################################################
# Multipath.conf file for IBM Storage
# IMPORTANT: If you change multipath.conf settings after the DM MPIO devices
# have already been configured, be sure to rerun "multipath".
###############################################################################
#
#
# defaults:
#
# polling_interval : The interval between two path checks in seconds.
#
# failback : The failback policy should be set to "immediate"
# to have automatic failback, i.e. if a higher
# priority path that previously failed is restored,
# I/O automatically and immediately fails back to
# the preferred path.
#
# no_path_retry : Use this setting in order to deal with transient
# total path failure scenarios. Indicates that the if
# all paths are failed for 10 checks (iterations of
# the checkerloop) then will set the device to
# .fail_if_no_path. so that I/O will not stay queued
# forever and I/O errors are returned back to the
# application. This value should be adjusted based on
# the value of the polling_interval. Basically, with a
# larger polling_interval, this means that the amount
# of time of allowed total path failure will be
# longer, since the tolerance time is
# (no_path_retry * polling_interval) seconds.
# SHOULD NOT BE USED WITH .features..
#
# rr_min_io : The number of IOs to route to a path before switching
# to the next path in the same path group
#
# path_checker : The default 'readsector0' path checker uses SCSI
# READ (opcode 0x28) which doesn't work in clustered
# environments. TUR (Test Unit Ready) does work in
# clustered environments with storage that subscribes
# to the SCSI-3 spec.
#
# user_friendly_names : With this value set to .yes., DM MPIO devices will
# be named as .mpath0., .mpath1., .mpath2., etc. ...
# The /var/lib/mulitpath/bindings file is
# automatically generated, mapping the .mpathX. name
# to the wwid of the LUN. If set to "no", use the
# WWID as the alias. In either case this be will be
# overriden by any specific aliases in this file.
#
#
defaults {
polling_interval 30
failback immediate
no_path_retry 5
no_path_retry 5
rr_min_io 100
path_checker tur
user_friendly_names yes
}
#
# devices : List of per storage controler settings, overrides default
# settings (device_maps block), overriden by per multipath
# settings (multipaths block)
#
# vendor : Vendor Name
#
# product : Product Name
#
# path_grouping_policy : Path grouping policy to apply to multipath hosted
# by this storage controller
#
# prio_callout : The program and args to callout to obtain a path
# weight. Weights are summed for each path group to
# determine the next PG to use case of failure.
# NOTE: If no callout then all paths have equals weight.
#
#
devices {
device {
vendor "IBM"
product "2810XIV"
selector "round-robin 0"
path_grouping_policy multibus
rr_min_io 15
path_checker tur
failback 15
no_path_retry queue
polling_interval 3
}
}
multipaths {
multipath {
wwid <lun do disco do sistema>
alias system
path_grouping_policy failover
path_selector "round-robin 0"
}
}
devnode_blacklist {
devnode "*"
}
blacklist {
devnode "sda"
}
Após a criação do arquivo, execute os comandos abaixo:
# multipath -F
# /etc/init.d/multipath-tools restart
# multipath -ll
Verifique se foi criado os dispositivos
# ls /dev/mapper/
Após isso devemos atualizar o grub.
# update-initramfs -u
# update-grub
# reboot
Ativar multipath no squeeze
1. Instalação dos pacotes do multipath
# aptitude install multipath-tools-boot multipath-tools firmware-qlogic
2. Reiniciar
Depois de reiniciar vai entrar na prompt do initramfs.
Executar o comando
# ls /dev/mapper/
Verificar e anotar os ids do disco.
3. Entrar no grub e colocar no lugar do root=<UIDdoDisco> trocar para <Lun>
4. Depois de dar o boot, favor alterar no grub o caminho para efetivar o boot pelo multipath.
# aptitude install multipath-tools-boot multipath-tools firmware-qlogic
2. Reiniciar
Depois de reiniciar vai entrar na prompt do initramfs.
Executar o comando
# ls /dev/mapper/
Verificar e anotar os ids do disco.
3. Entrar no grub e colocar no lugar do root=<UIDdoDisco> trocar para <Lun>
4. Depois de dar o boot, favor alterar no grub o caminho para efetivar o boot pelo multipath.
Ativando Bonding no Debian Squeeze
Instalação Primeiro instale o pacote ifenslave-2.6, necessario para ativar bonding:
# apt-get install ifenslave-2.6
Shutdown / Desconfigure Interfaces Existentes
# ifdown eth0 (Repeat for all interfaces included in the bond)
# /etc/init.d/networking stop
Configuração Modifique o arquivo /etc/network/interfaces:
auto bond0 iface
bond0 inet static
address 10.31.1.5
netmask 255.255.255.0
network 10.31.1.0
gateway 10.31.1.254
slaves eth0 eth1
bond-mode active-backup
bond-miimon 100
bond-downdelay 200
bond-updelay 200
Iniciando nova interface
# ifup bond0
# /etc/init.d/networking start
cat /sys/class/net/bond0/bonding/mode
# apt-get install ifenslave-2.6
Shutdown / Desconfigure Interfaces Existentes
# ifdown eth0 (Repeat for all interfaces included in the bond)
# /etc/init.d/networking stop
Configuração Modifique o arquivo /etc/network/interfaces:
auto bond0 iface
bond0 inet static
address 10.31.1.5
netmask 255.255.255.0
network 10.31.1.0
gateway 10.31.1.254
slaves eth0 eth1
bond-mode active-backup
bond-miimon 100
bond-downdelay 200
bond-updelay 200
Iniciando nova interface
# ifup bond0
# /etc/init.d/networking start
cat /sys/class/net/bond0/bonding/mode
terça-feira, 21 de maio de 2013
Configurando o dvd como repositorio local do RHEL
Monte o DVD dá seguinte forma:
# mount -o loop /dev/hdc /media/dvdrom
Se for uma ISO da seguinte forma:
# mount -o loop /home/user/rhel-xxx.iso /media/dvdrom
Crie o arquivo do repositorio:
# vi /etc/yum.repos.d/dvd.repo
No arquivo de configuração criado, coloque os dados abaixo:
[dvd]
name=DVD for RHEL5
baseurl=file:///media/dvdrom/Server
enabled=1
gpgcheck=0
# mount -o loop /dev/hdc /media/dvdrom
Se for uma ISO da seguinte forma:
# mount -o loop /home/user/rhel-xxx.iso /media/dvdrom
Crie o arquivo do repositorio:
# vi /etc/yum.repos.d/dvd.repo
No arquivo de configuração criado, coloque os dados abaixo:
[dvd]
name=DVD for RHEL5
baseurl=file:///media/dvdrom/Server
enabled=1
gpgcheck=0
Instalando fontes Microsoft TrueType no RHEL, passo a passo
Instalado o utilitário rpm-build:
# yum install rpm-build
Em seguida, instale o utilitário cabextract, disponível em:
http://www.rpmfind.net/linux/rpm2html/search.php?query=cabextract
O download do arquivo mais recente especificação para msttcorefonts:
curl -O http://corefonts.sourceforge.net/msttcorefonts-2.5-1.spec
Crie um arquivo ~/.rpmmacros contendo uma linha:
%_topdir %(echo $HOME)/rpmbuild
A seguir crie os diretórios necessários:
# mkdir -p ~/rpmbuild/BUILD
# mkdir -p ~/rpmbuild/RPMS/noarch
Construindo o rpm:
# rpmbuild -bb msttcorefonts-2.5-1.spec
Se tudo der certo, deve ser criado um arquivo msttcorefonts-2.5-1.rpm dentro do diretorio ~/rpmbuild/RPMS/noarch.
Fontes da pesquisa:
http://corefonts.sourceforge.net
http://www.sysarchitects.com/node/112
Habilitando SSL no Apache2
Instale
os pacotes necessários #
# aptitude
install openssl ssl-cert
Crie
o certificado
# openssl
req $@ -new -x509 -days 365 -nodes -out /etc/apache2/apache.pem -keyout
/etc/apache2/apache.pem
Defina
a permissão para o arquivo criado
# chmod
600 /etc/apache2/apache.pem
Habilite
o suporte a SSL no apache2 da seguinte forma:
# a2enmod
ssl
Edite
o arquivo /etc/apache2/sites-available/<virtual host>, adicionando as
seguintes linhas:
<VirtualHost
*:443>
ServerName www.<dominio>.am.gov.br
ServerAdmin webmaster@localhost
SSLEngine on
SSLCertificateFile
/etc/apache2/apache.pem
DocumentRoot /var/www/<domínio>/
<Directory /var/www/<domínio>/>
Options -Indexes FollowSymLinks
MultiViews
AllowOverride AuthConfig All
# AllowOverride None
Order allow,deny
allow from all
</Directory>
ErrorLog ${APACHE_LOG_DIR}/error.log
# Possible values include: debug, info,
notice, warn, error, crit,
# alert, emerg.
LogLevel warn
CustomLog ${APACHE_LOG_DIR}/access.log
combined
</VirtualHost>
Reinicie
o Apache
# apache2ctl
restart
Instalação SVN + AD + WEBDAV no Debian 7
1. Instalar os pacotes abaixo:
apt-get install websvn php5-ldap libapache2-svn
2. Habilitar os modulos abaixo no apache2.
a2enmod dav_fs authnz_ldap
3. Modificar o arquivo vi /etc/websvn/apache.conf
As linhas conforme abaixo:
Alias /websvn /usr/share/websvn
<Directory /usr/share/websvn>
## No MultiViews
DirectoryIndex index.php
Options FollowSymLinks
## MultiViews
#DirectoryIndex wsvn.php
#Options FollowSymLinks MultiViews
## End MultiViews
Order allow,deny
Allow from all
AuthBasicProvider ldap
AuthType Basic
AuthzLDAPAuthoritative off
AuthName "Subversion Repository Web Browsing"
AuthLDAPURL "ldap://<ip ou nome do servidor AD:389/DC=exemplo,DC=local?sAMAccountName?sub?(objectClass=*)" NONE
AuthLDAPBindDN "CN=<Usuário para consulta no AD>,CN=Users,DC=exemplo,DC=local"
AuthLDAPBindPassword <Senha do usuário>
require valid-user
<IfModule mod_php4.c>
php_flag magic_quotes_gpc Off
php_flag track_vars On
</IfModule>
</Directory>
<Location /svn>
DAV svn
SVNPath /var/lib/svn
AuthBasicProvider ldap
AuthType Basic
AuthzLDAPAuthoritative off
AuthName "Subversion Repository"
AuthLDAPURL "ldap://<ip ou nome do servidor AD> :389/DC=exemplo,DC=local?sAMAccountName?sub?(objectClass=*)" NONE
AuthLDAPBindDN "CN=<Usuário para consulta no AD>,CN=Users,DC=exemplo,DC=local"
AuthLDAPBindPassword <Senha do usuário>
Require ldap-group CN=<grupo do AD>,CN=Users,DC=exemplo,DC=local
</Location>
4. Criar o repositorio via shell
# svnadmin create /var/lib/svn
# chown www-data.www-data /var/lib/svn
# chmod 755 /var/lib/svn
OBS: Esse procedimento pode ser aplicado utilizando uma base OpenLDAP.
apt-get install websvn php5-ldap libapache2-svn
2. Habilitar os modulos abaixo no apache2.
a2enmod dav_fs authnz_ldap
3. Modificar o arquivo vi /etc/websvn/apache.conf
As linhas conforme abaixo:
Alias /websvn /usr/share/websvn
<Directory /usr/share/websvn>
## No MultiViews
DirectoryIndex index.php
Options FollowSymLinks
## MultiViews
#DirectoryIndex wsvn.php
#Options FollowSymLinks MultiViews
## End MultiViews
Order allow,deny
Allow from all
AuthBasicProvider ldap
AuthType Basic
AuthzLDAPAuthoritative off
AuthName "Subversion Repository Web Browsing"
AuthLDAPURL "ldap://<ip ou nome do servidor AD:389/DC=exemplo,DC=local?sAMAccountName?sub?(objectClass=*)" NONE
AuthLDAPBindDN "CN=<Usuário para consulta no AD>,CN=Users,DC=exemplo,DC=local"
AuthLDAPBindPassword <Senha do usuário>
require valid-user
<IfModule mod_php4.c>
php_flag magic_quotes_gpc Off
php_flag track_vars On
</IfModule>
</Directory>
<Location /svn>
DAV svn
SVNPath /var/lib/svn
AuthBasicProvider ldap
AuthType Basic
AuthzLDAPAuthoritative off
AuthName "Subversion Repository"
AuthLDAPURL "ldap://<ip ou nome do servidor AD> :389/DC=exemplo,DC=local?sAMAccountName?sub?(objectClass=*)" NONE
AuthLDAPBindDN "CN=<Usuário para consulta no AD>,CN=Users,DC=exemplo,DC=local"
AuthLDAPBindPassword <Senha do usuário>
Require ldap-group CN=<grupo do AD>,CN=Users,DC=exemplo,DC=local
</Location>
4. Criar o repositorio via shell
# svnadmin create /var/lib/svn
# chown www-data.www-data /var/lib/svn
# chmod 755 /var/lib/svn
OBS: Esse procedimento pode ser aplicado utilizando uma base OpenLDAP.
Assinar:
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