1 | vi /etc/init/start-ttys.conf |
找到tty[1-6]改成tty[1-2]
1 | vi /etc/sysconfig/init |
找到ACTIVE_CONSOLES=/dev/tty[1-6]
改成ACTIVE_CONSOLES=/dev/tty[1-2]
CentOS 6 关闭多余tty通道
回复
Linux vps iptables 防火墙配置
1 | vi /etc/sysconfig/iptables |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | # Generated by iptables-save v1.4.7 on Sat Sep 29 10:26:10 2012 *nat :PREROUTING ACCEPT [40182:3767364] :POSTROUTING ACCEPT [11964:943507] :OUTPUT ACCEPT [11964:943507] -A POSTROUTING -s 192.168.0.0/24 -o eth0 -j MASQUERADE COMMIT # Completed on Sat Sep 29 10:26:10 2012 # Generated by iptables-save v1.4.7 on Sat Sep 29 10:26:10 2012 *filter :INPUT DROP [4:600] :FORWARD DROP [0:0] :OUTPUT DROP [0:0] -A INPUT -p gre -j ACCEPT -A INPUT -i lo -j ACCEPT -A INPUT -p tcp -m tcp --dport 20 -j ACCEPT -A INPUT -p tcp -m tcp --dport 21 -j ACCEPT -A INPUT -p tcp -m state --state NEW -m tcp --dport 22 -j ACCEPT -A INPUT -p tcp -m tcp --dport 443 -j ACCEPT -A INPUT -p tcp -m tcp --dport 80 -j ACCEPT -A INPUT -p tcp -m tcp --dport 1723 -j ACCEPT -A INPUT -p tcp -m tcp --dport 3306 -j ACCEPT -A INPUT -p tcp -m tcp --dport 30000:35000 -j ACCEPT -A INPUT -p tcp -m tcp --dport 65535 -j ACCEPT -A INPUT -p icmp -m icmp --icmp-type any -j ACCEPT -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT -A FORWARD -s 192.168.0.0/24 -o eth0 -j ACCEPT -A FORWARD -d 192.168.0.0/24 -i eth0 -j ACCEPT -I FORWARD -p tcp --syn -i ppp+ -j TCPMSS --set-mss 1356 -A OUTPUT -m state --state NEW,RELATED,ESTABLISHED -j ACCEPT |
Linux 修改用户密码
修改 Linux 用户密码其实很简单, 只要输入 “passwd 用户名” 回车, 就会提示你输入新密码及确认新密码. 如果省略用户名则修改当前用户密码.
申请免费代码签名证书
最近在研究代码签名技术, 花了不少时间, 下面记录一下从了解代码签名到获得一个有效的代码签名证书的过程.
首先说一下什么是”代码签名”:
代码签名即软件的所有者使用受全球认可的第三方发放的能证明其真实身份的 “代码签名数字证书” 为其开发的软件添加一个标记, 即所谓的 “签名”, 因而增强了可信度.
耳听为虚, 眼见为实, 有图有真象.
Win 7 重建(刷新)图标缓存
常用 win7 系统的人都知道当我们更改一个 exe 程序的图标后, 无论如何设置,刷新都无法显示更新后的图标. 有人想出一个方法, 就是将程序改名或复制到另一个路径下. 但是每次都这样太麻烦了. 下面介绍一个简单的方法. 轻点鼠标就能解决问题.
运行在 IIS 上的 wordpress 重写设置.(wordpress rewrite .htaccess to web.config)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 | <?xml version="1.0" encoding="UTF-8"?> <configuration> <system.webServer> <directoryBrowse enabled="false" /> <defaultDocument> <files> <clear /> <add value="index.php" /> <add value="Default.aspx" /> <add value="Default.htm" /> <add value="Default.html" /> <add value="Default.asp" /> <add value="index.pl" /> <add value="index.htm" /> <add value="index.html" /> </files> </defaultDocument> <rewrite> <rules> <rule name="wordpress" patternSyntax="Wildcard"> <match url="*" /> <conditions> <add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true" /> <add input="{REQUEST_FILENAME}" matchType="IsDirectory" negate="true" /> </conditions> <action type="Rewrite" url="index.php" /> </rule> </rules> </rewrite> <httpErrors errorMode="DetailedLocalOnly" /> </system.webServer> </configuration> |
CentOS 添加常用 yum 源
CentOS 的官方源去掉了一些与版权有关的软件,因此想要安装这些软件或者手动下载安装,或者使用其他源. 下面我推荐常用的两个源, 这两个源基本可以满足一般服务器的使用需求.
修改 Linux 系统时区与时间
一、修改时区
1. 查看当前时区
1 | date -R |
2. 修改设置时区
用 tzselect 选出目标时区
1 | tzselect |
根据提示选择相应时区, 最后得到时区设置, 如: TZ=’Asia/Shanghai’; export TZ
这里的 Asia/Shanghai 就是我们要使用的时区设置写法.
修改 Linux 主机名(hostname)
Linux 安装好后，其默认的主机名是 localhost。
修改 Linux 主机名需要3步:
1.使用 hostname 修改当前主机名。
1 | hostname new-hostname |
2.修改 /etc/sysconfig/network 配置文件，以便下次重启的时，使用新的主机名。
打开 /etc/sysconfig/network 文件, 将HOSTNAME改为以下内容.
1 | HOSTNAME=new-hostname.localdomain |
Skype 表情集合, 包含隐藏表情.
Emoticons
| Icon | Animated | Name | Shortcodes |
|---|---|---|---|
| Smile | 🙂 :=) 🙂 | ||
| Sad Smile | 🙁 :=( 🙁 | ||
| Big Smile | :D:=D:-D:d:=d:-d | ||
| Cool | 8)8=)8-)B)B=)B-)(cool) | ||
| Wink | :o:=o:-o:O:=O:-O | ||
| Crying | ;(;-(;=( | ||
| Sweating | (sweat)(:| | ||
| Speechless | :|:=|:-| | ||
| Kiss | :*:=*:-* | ||
| Tongue Out | :P:=P:-P:p:=p:-p | ||
| Blush | (blush):$:-$:=$:”> | ||
| Wondering | :^) | ||
| Sleepy | |-)I-)I=)(snooze) | ||
| Dull | (|=( | ||
| In love | (inlove) | ||
| Evil grin | ]:)>:)(grin) | ||
| Talking | (talk) | ||
| Yawn | (yawn)|-() | ||
| Puke | (puke):&:-&:=& | ||
| Doh! | (doh) | ||
| Angry | :@:-@:=@x(x-(x=(X(X-(X=( | ||
| It wasn’t me | (wasntme) | ||
| Party!!! | (party) | ||
| Worried | :S:-S:=S:s:-s:=s | ||
| Mmm… | (mm) | ||
| Nerd | 8-|B-|8|B|8=|B=|(nerd) | ||
| Lips Sealed | :x:-x:X:-X:#:-#:=x:=X:=# | ||
| Hi | (hi) | ||
| Call | (call) | ||
| Devil | (devil) | ||
| Angel | (angel) | ||
| Envy | (envy) | ||
| Wait | (wait) | ||
| Bear | (bear)(hug) | ||
| Make-up | (makeup)(kate) | ||
| Covered Laugh | (giggle)(chuckle) | ||
| Clapping Hands | (clap) | ||
| Thinking | (think):?:-?:=? | ||
| Bow | (bow) | ||
| Rolling on the floor laughing | (rofl) | ||
| Whew | (whew) | ||
| Happy | (happy) | ||
| Smirking | (smirk) | ||
| Nodding | (nod) | ||
| Shaking | (shake) | ||
| Punch | (punch) | ||
| Emo | (emo) | ||
| Yes | (y)(Y)(ok) | ||
| No | (n)(N) | ||
| Shaking Hands | (handshake) | ||
| Skype | (skype)(ss) | ||
| Heart | (h)(H)(l)(L) | ||
| Broken heart | (u)(U) | ||
| (e)(m) | |||
| Flower | (f)(F) | ||
| Rain | (rain)(london)(st) | ||
| Sun | (sun) | ||
| Time | (o)(O)(time) | ||
| Music | (music) | ||
| Movie | (~)(film)(movie) | ||
| Phone | (mp)(ph) | ||
| Coffee | (coffee) | ||
| Pizza | (pizza)(pi) | ||
| Cash | (cash)(mo)($) | ||
| Muscle | (muscle)(flex) | ||
| Cake | (^)(cake) | ||
| Beer | (beer) | ||
| Drink | (d)(D) | ||
| Dance | (dance)o/:D/:d/ | ||
| Ninja | (ninja) | ||
| Star | (*) | ||
| Mooning | (mooning) | ||
| Finger | (finger) | ||
| Bandit | (bandit) | ||
| Drunk | (drunk) | ||
| Smoking | (smoking)(smoke)(ci) | ||
| Toivo | (toivo) | ||
| Rock | (rock) | ||
| Headbang | (headbang)(banghead) | ||
| Bug | (bug) | ||
| Fubar | (fubar) | ||
| Poolparty | (poolparty) | ||
| Swearing | (swear) | ||
| TMI | (tmi) | ||
| Heidy | (heidy) |
另外还有(flag:国家简码)显示国旗，例如(flag:CN)显示中国国旗，(flag:UK)显示英国国旗等等……