Para visualizar as WWPNs no Linux, fica facil com o seguinte script:#!/bin/shFC_PATH="/sys/class/fc_host" for fc_adapter in `ls ${FC_PATH}`do echo "${FC_PATH}/${fc_adapter}:" NAME=$(awk '{print $1}' ${FC_PATH}/${fc_adapter}/symbolic_name ) echo " $NAME `cat ${FC_PATH}/${fc_adapter}/port_name`"doneA Saida e consolidada da seguinte forma:$ print_wwpns/sys/class/fc_host/host5: QLE2562 0x21000024ff45afc2 /sys/class/fc_host/host6: QLE2562 0x21000024ff45afc3Procurando um pouquinho na net encontrei o estiloso comando que tambem pode ser usado para recuperar informacoes do SYSFS.$ systool -c fc_host -vClass = "fc_host" Class Device = "host5" Class Device path = "/sys/class/fc_host/host5" fabric_name = "0x200a547fee9e5e01" issue_lip = node_name = "0x20000024ff45afc2" port_id = "0x0a00c0" port_name = "0x21000024ff45afc2" port_state = "Online" port_type = "NPort (fabric via point-to-point)" speed = "8 Gbit" supported_classes = "Class 3" supported_speeds = "1 Gbit, 2 Gbit, 4 Gbit, 8 Gbit" symbolic_name = "QLE2562 FW:v5.06.03 DVR:v8.03.07.09.05.08-k" system_hostname = "" tgtid_bind_type = "wwpn (World Wide Port Name)" uevent = Class Device = "host6" Class Device path = "/sys/class/fc_host/host6" fabric_name = "0x2014547feeba9381" issue_lip = node_name = "0x20000024ff45afc3" port_id = "0x9700a0" port_name = "0x21000024ff45afc3" port_state = "Online" port_type = "NPort (fabric via point-to-point)" speed = "8 Gbit" supported_classes = "Class 3" supported_speeds = "1 Gbit, 2 Gbit, 4 Gbit, 8 Gbit" symbolic_name = "QLE2562 FW:v5.06.03 DVR:v8.03.07.09.05.08-k" system_hostname = "" tgtid_bind_type = "wwpn (World Wide Port Name)" uevent = Dominio invalido foobar.br, e/ou nao pode ser resolvido por DNSNome de dominio invalido intranet, falhou checagem por expressao regularOs dois erros podem ser exibidos ao tentar criar uma conta no Postfixadmin, pelos seguintes motivos respectivamente:1. o dominio foobar.br nao foi criado no seu DNS, e nao pode ser resolvido, nem por nenhum DNS externo.2. o nome de dominio e tao curto que nao funcina na internet, nao existe registrado, mas funcionaria em um dominio LOCAL perfeitamente, caso seu DNS respondesse por essa ZONA.Por tanta essa e a nossa opcao, temos a ZONA no DNS configurado e com MX ok, portanto agora, vamos ao hack no postfixadmin para nao chegar a zona "intranet".Adicionar a seguinte linha no seu arquivo functions.inc.php que fica no raiz do /var/www/html/postfixadmin/ if ($domain == "intranet") return ''; No meu caso eu adicinei na linha 201 para a versao Postfix Admin Pronto agora so tentar criar o dominio e um usuario. 1. NloadNload is a commandline tool that allows users to monitor the incoming and outgoing traffic separately. It also draws out a graph to indicate the same, the scale of which can be adjusted. Easy and simple to use, and does not support many options.So if you just need to take a quick look at the total bandwidth usage without details of individual processes, then nload will be handy.$ nloadInstalling Nload - Fedora and Ubuntu have got it in the default repos. CentOS users need to get nload from Epel repositories.# fedora or centos$ yum install nload -y# ubuntu/debian$ sudo apt-get install nload2. iftopIftop measures the data flowing through individual socket connections, and it works in a manner that is different from Nload. Iftop uses the pcap library to capture the packets moving in and out of the network adapter, and then sums up the size and count to find the total bandwidth under use.Although iftop reports the bandwidth