在安裝完Ubuntu並重新開機後，可能會在開機畫面中看到「A start job is running for wait for Network to be configured」這樣的訊息，然後會有一個計時器開始計時，一直到兩分鐘後才可繼續進行之後的開機流程。這個問題的原因是出在哪呢？要如何解決？
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分類：主要文章 - 第 44 頁
「sudo」是Linux作業系統常用的指令，它可以暫時讓非root的使用者能夠以root權限去執行某個指令。在使用「sudo」執行指令之後，程式通常會要求使用者再次輸入其登入時所用的密碼，以確保目前臨時使用root權限操作電腦的人真的是該使用者本人。在預設情況下，使用者輸入給「sudo」的密碼通常完全不會顯示在終端機上，但是我們其實可以做一些設定，讓使用者輸入的密碼能以星號字元表示出來，如此一來也...
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Which http_access directive for Squid allows users in the ACL named sales_net to only access the Internet at times specified in the time_acl named sales_time?
A. http_access deny sales_time sales_n...
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Which of the following DNS record types is used for reverse DNS queries?
A. CNAME
B. IN
C. PTR
D. REV
E. RIN
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Which of the following information has to be submitted to a certification authority in order to request a web server certificate?
A. The web server's private key.
B. The IP address of the web serv...
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In order to protect a directory on an Apache HTTPD web server with a password, this configuration was added to an .htaccess file in the respective directory:
AuthType Basic
AuthName "Protected Dir...
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A.
TSIG server.example.com. {
algorithm hmac-md5;
secret "skrKc4DoTzi/takIlPi7JZA==";
}
B.
key server.example.com. {
algorithm hmac-md5;
secret skrKc4DoTzi/takIlPi7JZA==;...
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Which of the following Samba configuration parameters is functionally identical to the parameter read only=yes?
A. browseable=no
B. read write=no
C. writeable=no
D. write only=no
E. write acces...
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A user requests a "hidden" Samba share, named confidential, similar to the Windows Administration Share. How can this be configured?
A.
[confidential]
comment = hidden share
path = /srv/smb/hi...
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In order to join a file server to the Active Directory domain intra.example.com, the following smb.conf has been created:
[global]
workgroup = intra.example.com
netbios name = Fileserver...
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