19ページ目

いらないサービス

/sbin/chkconfig nfslock off
/sbin/chkconfig autofs off
/sbin/chkconfig kudzu off
/sbin/chkconfig xfs off
/sbin/chkconfig iiim off
/sbin/chkconfig pcmcia off
/sbin/chkconfig netfs off
/sbin/chkconfig smartd off
/sbin/chkconfig isdn off
/sbin/chkconfig canna off
/sbin/chkconfig iptables off
/sbin/chkconfig rpcidmapd off
/sbin/chkconfig gpm off
/sbin/chkconfig rpcgssd off
/sbin/chkconfig dracd off
/sbin/chkconfig webmin off
/sbin/chkconfig haldaemon off
/sbin/chkconfig cpuspeed off
/sbin/chkconfig messagebus off
/sbin/chkconfig readahead off
/sbin/chkconfig microcode_ctl off
/sbin/chkconfig irqbalance off
/sbin/chkconfig acpid off
/sbin/chkconfig readahead_early off
/sbin/chkconfig portmap off
/sbin/chkconfig cups off


VI文字化け対策

vi ~/.vimrc

default: utf-8

set encoding=utf-8
set fileencodings=iso-2022-jp,sjis,euc-jp

default: euc

set encoding=euc-jp
set fileencodings=iso-2022-jp,sjis,utf8

default: sjis

set encoding=sjis
set fileencodings=iso-2022-jp,euc-jp,utf8




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ネットマスク>ビットマスク表

IPアドレス数サブネットマスクビットマスク
1255.255.255.25532
2255.255.255.25431
3255.255.255.253
4255.255.255.25230
5255.255.255.251
6255.255.255.250
7255.255.255.249
8255.255.255.24829
9255.255.255.247
10255.255.255.246
11255.255.255.245
12255.255.255.244
13255.255.255.243
14255.255.255.242
15255.255.255.241
16255.255.255.24028
32255.255.255.22427
64255.255.255.19226
128255.255.255.12825
256255.255.255.024
512255.255.254.023
1024255.255.252.022
2048255.255.248.021
4096255.255.240.020
8192255.255.224.019
16384255.255.192.018
32768255.255.128.017
65536255.255.0.016
131072255.254.0.015
262144255.252.0.014
524288255.248.0.013
1048576255.240.0.012
2097152255.224.0.011
4194304255.192.0.010
8388608255.128.0.09
16777216255.0.0.08
33554432254.0.0.07
67108864252.0.0.06
134217728248.0.0.05
268435456240.0.0.04
536870912224.0.0.03
1073741824192.0.0.02
2147483648128.0.0.01
42949672960.0.0.00