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= XEN-SREVER SOURCE + DEBIAN =
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==Solucionando problemas com devices em loop==
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<pre>
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Xen: Failed to find an unused loop device
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    xm create vm#.domain
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But this resulted in following error:
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Error: Device 5632 (vbd) could not be connected.
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Failed to find an unused loop device
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Solution:
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    Create /etc/modprobe.d/local-loop.conf with this content:
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options loop max_loop=64
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**** Turn off all DomUs, yes, bummer. You’ll need to reload the loop module which won’t work if Xen is still using them. xm list should only display Domain-0.
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    modprobe -r loop && modprobe loop
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And restart all DomUs. You can now create 32 (64/2 ~= # of DomUs; increase if you need more) DomUs.
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You can check (before & after) the difference in loop back devices: ls -ls /dev | grep loop | wc -l
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</pre>
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= XEN-SERVER (Citrix e XCP) =
= XEN-SERVER (Citrix e XCP) =
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==Renovando a licença do XENSERVER - CITRIX pela linha de comando==
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''' Primeiro você deve solicitar uma nova licença [http://deliver.citrix.com/go/citrix/xenserver_renewalb AQUI]'''
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'''Procedimento para renovação da licença por linha de comando:'''
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<pre>
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find / -iname \*license
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/etc/xensource/license
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cd  /etc/xensource/
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mv license /home/lupa/licenca/BKP_`date +%d-%m-%Y`.license
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cp /home/lupa/license.xslic ./license
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</pre>
==Habilitar Repositorio no XENSERVER==
==Habilitar Repositorio no XENSERVER==

Edição atual tal como 02h51min de 7 de junho de 2017

Tabela de conteúdo

XEN-SREVER SOURCE + DEBIAN

Solucionando problemas com devices em loop


Xen: Failed to find an unused loop device

    xm create vm#.domain

But this resulted in following error:

Error: Device 5632 (vbd) could not be connected.
Failed to find an unused loop device

Solution:

    Create /etc/modprobe.d/local-loop.conf with this content:

options loop max_loop=64


**** Turn off all DomUs, yes, bummer. You’ll need to reload the loop module which won’t work if Xen is still using them. xm list should only display Domain-0.

    modprobe -r loop && modprobe loop


And restart all DomUs. You can now create 32 (64/2 ~= # of DomUs; increase if you need more) DomUs.

You can check (before & after) the difference in loop back devices: ls -ls /dev | grep loop | wc -l

XEN-SERVER (Citrix e XCP)

Renovando a licença do XENSERVER - CITRIX pela linha de comando

Primeiro você deve solicitar uma nova licença AQUI

Procedimento para renovação da licença por linha de comando: 


find / -iname \*license
/etc/xensource/license 
cd  /etc/xensource/
mv license /home/lupa/licenca/BKP_`date +%d-%m-%Y`.license
cp /home/lupa/license.xslic ./license

Habilitar Repositorio no XENSERVER

yum repolist enabled

sed -i -e "s/enabled=0/enabled=1/" /etc/yum.repos.d/CentOS-Base.repo

SNMP

Instalação 


yum install net-snmp

Arquivo conf 


###########################################################################
#
# snmpd.conf
#
#   - created by the snmpconf configuration program
#
###########################################################################
# SECTION: Access Control Setup
#
#   This section defines who is allowed to talk to your running
#   snmp agent.

# rocommunity: a SNMPv1/SNMPv2c read-only access community name
#   arguments:  community [default|hostname|network/bits] [oid]

rocommunity  <EMPRESA> 

# rwcommunity: a SNMPv1/SNMPv2c read-write access community name
#   arguments:  community [default|hostname|network/bits] [oid]

rwcommunity  <EMPRESA> 192.168.0.0/24 
com2sec     mynet     192.168.0.0/24  <EMPRESA>
com2sec     lupa    <Ip Liberado para consultar o SNMP>  <EMPRESA>
com2sec     local     localhost <EMPRESA>

group MyROGroup v1         mynet
group MyROGroup v2c        mynet
group MyROGroup usm        mynet
group MyRWGroup v1         local
group MyRWGroup v2c        local
group MyRWGroup usm        local
group MyRWGroup v1         lupa
group MyRWGroup v2c        lupa
group MyRWGroup usm        lupa


access MyROSystem ""     any       noauth    exact  system none   none
access MyROGroup ""      any       noauth    exact  all    none   none
access MyRWGroup ""      any       noauth    exact  all    all    none


###########################################################################
# SECTION: System Information Setup
#
#   This section defines some of the information reported in
#   the "system" mib group in the mibII tree.

# syslocation: The [typically physical] location of the system.
#   Note that setting this value here means that when trying to
#   perform an snmp SET operation to the sysLocation.0 variable will make
#   the agent return the "notWritable" error code.  IE, including
#   this token in the snmpd.conf file will disable write access to
#   the variable.
#   arguments:  location_string

syslocation  <EMPRESA>

# syscontact: The contact information for the administrator
#   Note that setting this value here means that when trying to
#   perform an snmp SET operation to the sysContact.0 variable will make
#   the agent return the "notWritable" error code.  IE, including
#   this token in the snmpd.conf file will disable write access to
#   the variable.
#   arguments:  contact_string

syscontact  nome@seudominio.com.br

# sysservices: The proper value for the sysServices object.
#   arguments:  sysservices_number

sysservices 76

view    all     included        .1      80

proc  mountd

proc  ntalkd    4

proc  sendmail 10 1

disk       /     10000
disk       /var  5%
includeAllDisks  10%

load    12 14 14

Regras IPTABLES (Liberação da porta 161)

Arquivo: 

/etc/sysconfig/iptables

Adicionar a regra: 

-A RH-Firewall-1-INPUT -p udp --dport 161 -j ACCEPT

Execute o comando: 

service iptables restart

MIGRAÇÃO VMS

Exportando uma VM:

xe vm­export vm=<novo_nome_vm> filename=/<diretorio_de_backup_nome-da-vm.xva


Importando uam VM:

xe vm-import  filename=/<diretorio_de_backup_nome-da-vm.xva
Obtido em "https://wiki.lupahosting.com.br/index.php/XEN-Server"
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