Ai o monitoramento começa a gritar que as ventoinhas “FANs” dos switchs estão chaveando, desliga e liga. Fui analisar, e encontrei que o Switch “Dell Power Connect 5548” possuí uma trigger de temperatura a qual quando caí a temperatura ele desliga e quando sobe liga, e porque será que do nada começou a alarmar? Certeza…
Continue reading →Configurando port trunk em Switchs Cisco, abaixo o cenário: Abaixo configuração da porta:
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Switch(config)#interface gigabitEthernet 0/1 Switch(config-if)#description TRUNK-SW01-SW02 Switch(config-if)#switchport mode trunk Switch(config-if)#exit Switch#copy running-config s Switch#copy running-config startup-config Destination filename [startup-config]? Building configuration... [OK] |
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Switch#show interfaces trunk Port Mode Encapsulation Status Native vlan Gig0/1 on 802.1q trunking 1 Port Vlans allowed on trunk Gig0/1 1-1005 Port Vlans allowed and active in management domain Gig0/1 1 Port Vlans in spanning tree forwarding state and not pruned Gig0/1 1 Switch# |
Referência: https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus5000/sw/configuration/guide/cli/CLIConfigurationGuide/AccessTrunk.html
Continue reading →E então tenho um ambiente VMWare para atualizar, e agora como fazer? Após estudo de caso, e alguns laboratórios descobri e validei que: 1 – No processo de update do ambiente VMWare, primeiro de tudo é subir a versão do VCenter. 2 – Com o VCenter numa versão superior aos ESXI, você instala o “VMWare Update…
Continue reading →1 – Nome
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Switch>enable Switch#configure terminal Enter configuration commands, one per line. End with CNTL/Z. Switch(config)#hostname SW01-CISCO SW01-CISCO(config)#end %SYS-5-CONFIG_I: Configured from console by console SW01-CISCO#copy running-config startup-config Destination filename [startup-config]? Building configuration... [OK] |
2 – Senhas de acesso
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SW01-CISCO>enable SW01-CISCO#configure terminal SW01-CISCO(config)#enable secret 123456 SW01-CISCO(config)#line console 0 SW01-CISCO(config-line)#password 123456 SW01-CISCO(config-line)#login SW01-CISCO(config-line)#exit SW01-CISCO(config)#line vty 0 15 SW01-CISCO(config-line)#password 123456 SW01-CISCO(config-line)#end SW01-CISCO#copy running-config startup-config Destination filename [startup-config]? Building configuration... [OK] |
3 – Definir endereço ip/gw/dns de gerenciamento
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SW01-CISCO>enable SW01-CISCO#configure terminal SW01-CISCO(config)#interface vlan 1 SW01-CISCO(config-if)#ip address 10.10.10.100 255.255.255.0 SW01-CISCO(config-if)#no shutdown SW01-CISCO(config-if)#exit SW01-CISCO(config)#ip default-gateway 10.10.10.254 SW01-CISCO(config)#ip name-server 10.10.10.254 SW01-CISCO(config)#end SW01-CISCO#copy running-config startup-config Destination filename [startup-config]? Building configuration... [OK] SW01-CISCO#show running-config | incl default-gateway ip default-gateway 10.10.10.254 SW01-CISCO#show ip interface vlan 1 | incl Inter Internet address is 10.10.10.100/24 SW01-CISCO#show running-config | incl name-server ip name-server 10.10.10.254 |
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Criar VLANs – No caso do CISCO 2960 não possuí sintaxe para criar uma range de VLANs, então no notepad++ listar os comandos e colar na CLI
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vlan 30 name test30 vlan 31 name test31 vlan 32 name test32 vlan 33 name test33 LINHA VAZIA |
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Switch>ena Switch#show vlan Switch#vlan database % Warning: It is recommended to configure VLAN from config mode, as VLAN database mode is being deprecated. Please consult user documentation for configuring VTP/VLAN in config mode. Switch(vlan)#vlan 30 name test30 VLAN 30 added: Name: test30 Switch(vlan)#vlan 31 name test31 VLAN 31 added: Name: test31 Switch(vlan)#vlan 32 name test32 VLAN 32 added: Name: test32 Switch(vlan)#vlan 33 name test33 VLAN 33 added: Name: test33 Switch(vlan)#exit APPLY completed. Exiting.... |
Apagar VLANs
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no vlan 30 no vlan 31 no vlan 32 no vlan 33 LINHA VAZIA |
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Switch#vlan database % Warning: It is recommended to configure VLAN from config mode, as VLAN database mode is being deprecated. Please consult user documentation for configuring VTP/VLAN in config mode. Switch(vlan)#no vlan 30 Deleting VLAN 30... Switch(vlan)#no vlan 31 Deleting VLAN 31... Switch(vlan)#no vlan 32 Deleting VLAN 32... Switch(vlan)#no vlan 33 Deleting VLAN 33... Switch(vlan)#exit APPLY completed. Exiting.... |
Referências: https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst2950/software/release/12-1_11_yj4/configuration/guide/lrescg/swvlan.html
Continue reading →E chegou o momento de aprender um pouco de Switchs e Routers, cair dentro da console do Switch e desenrolar, então aqui alguns comandos base para iniciarmos os trabalhos. Modos de operações em Switchs, primeiro precisamos entrar em modo de usuário privilegiado com “enable”, e para editar temos o “configure t OU conf t”:
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enable Turn on privileged commands configure Enter configuration mode SW03-CISCO>enable SW03-CISCO#conf t Enter configuration commands, one per line. End with CNTL/Z. SW03-CISCO(config)#exit SW03-CISCO# %SYS-5-CONFIG_I: Configured from console by console SW03-CISCO#disable SW03-CISCO> |
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Continue reading →Habilitar
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SW03-CISCO-RP(config)#interface range gigabitEthernet 1/0/1, gigabitEthernet 1/0/10 SW03-CISCO-RP(config-if-range)#spanning-tree portfast |
Desabilitar
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SW03-CISCO-RP(config-if-range)#no spanning-tree portfast |
Salvar a configuração
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SW03-CISCO-RP#copy running-config startup-config |
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Instalando e configurando o serviço
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[root@centos]# yum install samba samba-client samba-common [root@centos]# systemctl enable nmb smb [root@centos]# adduser jhones [root@centos]# passwd jhones [root@centos]# groupadd samba [root@centos]# usermod jhones -aG samba [root@centos]# chmod 0770 /storage/ [root@centos]# chown root.samba /storage/ [root@centos]# vim /etc/samba/smb.conf # See smb.conf.example for a more detailed config file or # read the smb.conf manpage. # Run 'testparm' to verify the config is correct after # you modified it. [global] workgroup = SAMBA security = user passdb backend = tdbsam map to guest = bad user printing = cups printcap name = cups load printers = yes cups options = raw #[homes] # comment = Home Directories # valid users = %S, %D%w%S # browseable = No # read only = No # inherit acls = Yes #[print$] # comment = Printer Drivers # path = /var/lib/samba/drivers # write list = root # create mask = 0664 # directory mask = 0775 [opt] path = /opt valid users = root guest ok = no writable = yes browsable = yes create mask = 666 directory mask = 777 force directory mode = 0777 force create mode = 0777 [storage] path = /storage valid users = @samba guest ok = no writable = yes browsable = yes create mask = 666 directory mask = 777 force directory mode = 0777 force create mode = 0777 [root@centos]# systemctl start nmb smb [root@centos]# smbpasswd -a jhones [root@centos]# testparm |
Cliente no Linux MODO1
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[root@centos]# yum install cifs-utils [root@centos]# mount.cifs //192.168.1.15/storage /mnt/storage -o username=jhones,password=123456 |
Cliente no Linux MODO2
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[root@centos]# vim /etc/.storage username=jhones password=123456 [root@centos]# chmod 600 /etc/.storage [root@centos]# mount -t cifs //192.168.1.15/storage /mnt/storage -o credentials=/etc/.storage |
E no /etc/fstab
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//192.168.1.15/storage /mnt/storage cifs credentials=/etc/.storage,defaults 0 0 |
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Bummm
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[root@centos7]# chmod u+x /etc/rc.d/rc.local [root@centos7]# systemctl start rc-local [root@centos7]# systemctl enable rc-local [root@centos7]# vim /etc/rc.local #!/bin/bash # THIS FILE IS ADDED FOR COMPATIBILITY PURPOSES # # It is highly advisable to create own systemd services or udev rules # to run scripts during boot instead of using this file. # # In contrast to previous versions due to parallel execution during boot # this script will NOT be run after all other services. # # Please note that you must run 'chmod +x /etc/rc.d/rc.local' to ensure # that this script will be executed during boot. # Iptables /etc/firewall/firewall.sh start touch /var/lock/subsys/local |
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1 – Instalar pacotes e iniciar serviços
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[root@centos7]# rpm -ivh http://remi.xpg.com.br/enterprise/remi-release-7.rpm [root@centos7]# yum -y install httpd php71-php-pecl-mysql php71-php-mysqlnd php71 php71-build php71-php php71-php-cli php71-php-common php71-php-fpm php71-php-gd php71-php-mbstring php71-php-mcrypt php71-php-pecl-zip php71-php-xml [root@centos7]# systemctl start httpd php71-php-fpm [root@centos7]# systemctl enable httpd php71-php-fpm |
2 – Alterar confs
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[root@centos7]# vim /etc/httpd/conf.d/php.conf <FilesMatch \.php$> # SetHandler application/x-httpd-php SetHandler "proxy:fcgi://127.0.0.1:9000" </FilesMatch> [root@centos7]# systemctl restart php71-php-fpm [root@centos7]# mv /etc/httpd/conf.modules.d/10-php.conf /etc/httpd/conf.modules.d/10-php.conf.old [root@centos7]# systemctl restart httpd |
3 – Testar
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[root@centos7]# echo '<?php phpinfo(); ?>' > /var/www/html/info.php [root@centos7]# curl http://localhost/info.php | grep 'PHP Version' | tail -1 | sed -e 's/<[^>]*>//g' |
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