在linux環(huán)境下，如果這臺(tái)機(jī)子的名字是dev，每次執(zhí)行sudo的時(shí)候總是出現(xiàn)：

sudo: unable to resolve host dev

雖然命令可以正常執(zhí)行，但是老是提示這個(gè)信息還是有點(diǎn)煩人，而這只是機(jī)器在反解上的問題，所以就直接在從/etc/hosts設(shè)定，讓系統(tǒng)能夠從dev轉(zhuǎn)換成127.0.0.1的ip

/etc/hosts 的原來內(nèi)容：

$ cat /etc/hosts # 原始 /etc/hosts 設(shè)定檔內(nèi)容

127.0.0.1?????? localhost

# The following lines are desirable for IPv6 capable hosts
::1???? localhost ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
ff02::3 ip6-allhosts

解決辦法：

內(nèi)容修改成如下:

127.0.0.1?????? localhost dev
# 或 改成下面這兩行
#127.0.0.1?????? localhost
#127.0.0.1?????? dev

# The following lines are desirable for IPv6 capable hosts
::1???? localhost ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
ff02::3 ip6-allhosts

這樣設(shè)置完成后，在執(zhí)行sudo就不會(huì)有錯(cuò)誤信息了。

轉(zhuǎn)載于:https://www.cnblogs.com/rui1988/archive/2011/07/23/2114936.html

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