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linux中free命令的available值是如何計(jì)算的？

{代碼...} 請(qǐng)問(wèn)大神們，available項(xiàng)是如何計(jì)算出來(lái)的呢？在統(tǒng)計(jì)內(nèi)存使用率時(shí)這項(xiàng)是否可參考？

From [Linuxdiscussion group] 2017-04-17 14:40:23 0  1  901

openresty - Why do many projects use Lua to implement nginx reload and other actions? What are the advantages?

Is reloading faster? What are the disadvantages of this method compared with ./nginx -s reload to reload the c...

From [Linuxdiscussion group] 2017-05-16 17:11:16 0  1  900

ubuntu - Can not receive/send message from certain group anymore

系統(tǒng)：Ubuntu 15.04 64位 Skype版本：4.3.0.37 之前好好的，使用著突然不能“接收/發(fā)送”群組消息了，消息的前面都標(biāo)著感嘆號(hào)的標(biāo)示，提示消息不成功。只有重新創(chuàng)建的組才可以收發(fā)信息，這是什么原因?qū)е?..

From [Linuxdiscussion group] 2017-04-22 08:55:49 0  0  900

Linux中,有了tar命令,似乎gzip,compress這些命令沒(méi)有什么用了?

描述問(wèn)題 好像自己很少使用gzip這一類純粹的壓縮解壓縮命令更多時(shí)候在使用tar命令 雖然tar會(huì)調(diào)用相應(yīng)的底層命令,但是我不關(guān)心 想知道gzip,可以用在何處 //anyway, 我知道gzip等是用于壓縮解壓縮 ta...

From [Linuxdiscussion group] 2017-04-17 15:03:27 0  5  900

linux - shell怎么多行并作一行處理？

如果第1行和第2行都不以;開(kāi)頭，則合并這兩行為新行，并繼續(xù)處理新行和第3行； 如果第1行以;開(kāi)頭，則繼續(xù)處理第2行和第3行。 以上流程僅為方便描述，只要能達(dá)到相同效果即可。 如輸入為： ;a ;;b c d; e;;; ...

From [Linuxdiscussion group] 2017-04-17 12:05:30 0  4  900

linux - 為何redis的TIME_WAIT值如此之高

我用的是redis的pecl客戶端，在代碼里使用的是connect函數(shù)，并且每次請(qǐng)求都手動(dòng)關(guān)閉了連接。但最近iammutex的一個(gè)回答提醒了我關(guān)注下系統(tǒng)的連接數(shù)，于是我在晚上訪問(wèn)量比較小的時(shí)候看到如下讓我吃驚的結(jié)果 {代...

From [Linuxdiscussion group] 2017-04-17 11:00:15 0  4  900

Nginx reverse proxy long connection problem

I have several servers A, B, C, D, E... Among them, A can access the external network, but the others cannot. ...

From [Linuxdiscussion group] 2017-05-16 17:24:38 0  2  899

linux - 命令打印當(dāng)前路徑

看到如下打印列出文件夾詳情，寫(xiě)博客很實(shí)用，但是不知道怎么打印出來(lái)的，有知道的朋友嗎？

From [Linuxdiscussion group] 2017-04-17 15:59:42 0  2  899

linux - 虛擬機(jī)centos,ping baidu.com出現(xiàn)ttl=128 time=56978 ms (DUP!)，什么原因哈

64 bytes from 115.239.210.27: icmp_seq=1 ttl=128 time=56978 ms (DUP!) 64 bytes from 115.239.210.27: icmp_seq=1...

From [Linuxdiscussion group] 2017-04-17 13:04:43 0  1  899

apache - How to set rules in .htaccess to prevent downloading of .htaccess files

I often receive alerts to download .htaccess, which is quite annoying. I want to prohibit access to it, but I ...

From [Linuxdiscussion group] 2017-05-16 16:58:27 0  1  898

Can nginx redirect dynamic addresses to pseudo-static addresses?

{Code...} Can nginx redirect dynamic addresses to pseudo-static addresses? I don't know much about ningx's syn...

From [Linuxdiscussion group] 2017-05-16 17:27:49 0  2  897

display - Ubuntu雙顯卡如何切換控制臺(tái)顯示器？

我有一臺(tái)臺(tái)式機(jī)安裝了Ubuntu操作系統(tǒng)，并且安裝了兩塊英偉達(dá)顯卡，兩臺(tái)都連接有顯示器?，F(xiàn)在我已經(jīng)通過(guò)修改xorg.conf文件把主顯式屏切換到另一臺(tái)顯示器上。但是控制臺(tái)(Console或者shell)也就是我在按了Ct...

From [Linuxdiscussion group] 2017-04-22 08:55:52 0  0  897

Nginx: One IP, multiple websites, how to configure?

One IP, multiple websites, how to configure it? Ubuntu 14.04 nginx 1.80 php5-fpm works fine for one website, b...

From [Linuxdiscussion group] 2017-05-16 17:21:47 0  5  896

nginx configures Content-Security-Policy and Font is killed

Some inexplicable things are inserted into the web page, and https cannot be turned on for some reason. If you...

From [Linuxdiscussion group] 2017-05-16 17:15:15 0  1  896

nginx - Using ngx_http_limit_conn_module according to the tutorial, the number of concurrent connections of the virtual host cannot be limited

I follow http://www.jb51.net/article/7... to configure the nginx.conf file to limit the number of concurrent c...

From [Linuxdiscussion group] 2017-05-16 17:14:08 0  3  896