一、提问

存储设备默认不安装telnet工具，若涉及存储端的的tcp端口检测，需如何使用现有工具检测？

二、解决方法

存储设备默认支持ssh工具，可采用ssh工具测试tcp端口是否可达。

（1）端口不可达的情况：若提升connection refused，则表示端口不大达，需协调客户在防火墙设备开放对应端口；

-bash-4.1# ssh 172.0.120.2 -p 1110 -v
OpenSSH_5.3p1, OpenSSL 1.0.0-fips 29 Mar 2010
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Applying options for *
debug1: Connecting to 172.0.120.2 [172.0.120.2] port 1110.
debug1: connect to address 172.0.120.2 port 1110: Connection refused
ssh: connect to host 172.0.120.2 port 1110: Connection refused

-bash-4.1# ssh csms.macrosan.com -p 80 -v
OpenSSH_5.3p1, OpenSSL 1.0.0-fips 29 Mar 2010
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Applying options for *
debug1: Connecting to csms.macrosan.com [172.153.254.72] port 80.
debug1: Connection established.
debug1: permanently_set_uid: 0/0
debug1: identity file /root/.ssh/identity type -1
debug1: identity file /root/.ssh/id_rsa type -1
debug1: identity file /root/.ssh/id_dsa type -1
ssh_exchange_identification: Connection closed by remote host