Hyo Kim's weblog » ubuntu

Adding a user with admin previlege

hkim — Wed, 19 Mar 2008 09:32:10 +0000

먼저 user를 더한다.

user@domain$: sudo adduser whanoh
Adding user `whanoh’ …
Adding new group `whanoh’ (1003) …
Adding new user `whanoh’ (1003) with group `whanoh’ …
Creating home directory `/home/whanoh’ …
Copying files from `/etc/skel’ …
Enter new UNIX password:
Retype new UNIX password:
passwd: password updated successfully
Changing the user information for whanoh
Enter the new value, or press ENTER for the default
Full Name []: whan
Room Number []: oh
Work Phone []:
Home Phone []:
Other []:
Is the information correct? [y/N] y

이 사용자를 admin 그룹에 속하도록 한다.

user@domain:~$ sudo adduser whanoh admin
Adding user `whanoh’ to group `admin’ …
Done.

아래와 같은 명령어도 같은 역할을 한다.

sudo usermod -a -G admin whanoh

vista ipv6 issue

hkim — Tue, 26 Feb 2008 04:38:40 +0000

Symptom: Internet connections in vista is painfuly slow. Even sometimes I get “timeout.”

Solution:

There may be a problem with vista ipv6. Its “auto tunning” feature nags connection. See, http://robgarrett.com/cs/blogs/software/archive/2006/12/31/vista-firefox-2-slow-network.aspx

ssh slow login

hkim — Thu, 21 Feb 2008 11:51:38 +0000

상황: ssh로 호스트 접근할 때 로그인까지의 시간이 너무 길 때

DNS 매칭이 끝난 후에 로그인 프로프트가 뜬다. 따라서
/etc/ssh/sshd_config 내용에
UseDNS no
로 지정해 둔다.