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默認情況下，Linux操作系統(tǒng)是開啟ping的。如果你的Linux系統(tǒng)無法ping通其他設(shè)備，可能是因為防火墻做了限制，可以關(guān)閉防火墻或者添加相應(yīng)的規(guī)則。要檢查系統(tǒng)是否支持ping命令，可以在終端中輸入ping命令并按下回車鍵。如果系統(tǒng)支持ping，將會收到響應(yīng)。如果系統(tǒng)不支持，將會提示“command not found”。如果你需要確保ping被開啟，可以在終端中輸入以下命令： sudo sysctl -w net.ipv4.icmp_echo_ignore_all=0 這個命令將允許你的系統(tǒng)接收來自其他設(shè)備的ping請求。如果你想關(guān)閉ping，可以將“0”改為“1”。請注意，如果你在公共網(wǎng)絡(luò)上使用Linux操作系統(tǒng)，開啟ping可能會增加你的系統(tǒng)暴露于網(wǎng)絡(luò)攻擊的風險。因此，建議開啟ping只用于局域網(wǎng)或者信任的私人網(wǎng)絡(luò)。

Public @ 2023-06-16 01:50:29

Linux操作系統(tǒng)下如何對硬盤進行分區(qū)并掛載分區(qū)（fdisk和mount命令）

威海服務(wù)器/VPS 威海Linux
1439

在Linux操作系統(tǒng)下，可以使用fdisk命令對硬盤進行分區(qū)，然后使用mount命令來掛載分區(qū)。以下是使用fdisk和mount命令進行分區(qū)和掛載的步驟： 1. 以root用戶或者具有管理員權(quán)限的用戶登錄到Linux系統(tǒng)。 2. 打開終端，并執(zhí)行fdisk命令，選擇要進行分區(qū)的硬盤，例如/dev/sda： ``` sudo fdisk /dev/sda ``` 3. 在fdisk命令行下，可

Public @ 2023-06-30 14:50:18

Windows Server的IIS和Apache性能

IIS和Apache都是流行的Web服務(wù)器軟件，但它們的性能和特性不同。以下是對它們性能方面的比較： 1. 處理速度： IIS通常比Apache更快，尤其是在Windows環(huán)境下。這是因為IIS是Microsoft的官方Web服務(wù)器，緊密集成了Windows操作系統(tǒng)和ASP.NET技術(shù)。 Apache的性能則取決于它運行在的服務(wù)器硬件和軟件配置。 2. 穩(wěn)定性：IIS因為緊密集成Windows

Public @ 2023-06-27 09:50:57

快云VPS/服務(wù)器系統(tǒng)開啟PING 方法

威海服務(wù)器/VPS 威海Ping
1451

要開啟PING，你可以按照以下步驟進行操作： 1. 登錄到快云VPS/服務(wù)器，使用root賬戶或具有管理員權(quán)限的賬戶。 2. 打開終端或命令提示符，輸入以下命令查看當前的PING設(shè)置： ```shell sysctl net.ipv4.icmp_echo_ignore_all ``` 3. 如果命令輸出為`net.ipv4.icmp_echo_ignore_all = 1`

Public @ 2023-07-27 12:00:22

網(wǎng)絡(luò)連通性ping命令詳解

1.ping命令是用來測試網(wǎng)絡(luò)之間是否能夠連通以及網(wǎng)絡(luò)之間的傳輸速度。例：測試網(wǎng)卡，TCP/IP協(xié)議是否可用，如果發(fā)送的數(shù)據(jù)包數(shù)目等于接收的數(shù)據(jù)包數(shù)目（也就是本機能夠接收到目的地址發(fā)送的數(shù)據(jù)包），就證明網(wǎng)卡正常，TCP/IP協(xié)議可用。image.pngping命令的幾個常用參數(shù)：-n 定義發(fā)送數(shù)據(jù)包的個數(shù)，默認4個image.png-l 設(shè)定數(shù)據(jù)包的大小，默認32字節(jié)，最大65500字節(jié)image

Public @ 2018-12-08 16:13:50

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基本文件流程錯誤 SQL 調(diào)試

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[ DB ] CONNECT:[ UseTime:0.021294s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_config` [ RunTime:0.015300s ]
[ SQL ] SELECT * FROM `ob_config` [ RunTime:0.014272s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_config', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 25, 'extra' => NULL, ) ]
[ SQL ] SHOW COLUMNS FROM `ob_hook` [ RunTime:0.015291s ]
[ SQL ] SELECT `id`,`name`,`addon_list` FROM `ob_hook` [ RunTime:0.014446s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_hook', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 3, 'extra' => NULL, ) ]
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.015572s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 8976 LIMIT 1 [ RunTime:0.014467s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'const', 'possible_keys' => 'PRIMARY', 'key' => 'PRIMARY', 'key_len' => '4', 'ref' => 'const', 'rows' => 1, 'extra' => NULL, ) ]
[ SQL ] select * from `ob_article_tongji` where category_id=12 and mark_type='cate' order by times desc limit 15 [ RunTime:0.015004s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article_tongji', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 608, 'extra' => 'Using where; Using filesort', ) ]
[ SQL ] select * from `ob_article_tongji` where category_id=12 and mark_type='tags' order by times desc limit 100 [ RunTime:0.015282s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article_tongji', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 608, 'extra' => 'Using where; Using filesort', ) ]
[ SQL ] select * from `ob_article_tongji` where category_id=12 and mark_type='tags' order by rand() limit 30 [ RunTime:0.015476s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article_tongji', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 608, 'extra' => 'Using where; Using temporary; Using filesort', ) ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 8976 LIMIT 1 [ RunTime:0.014215s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'const', 'possible_keys' => 'PRIMARY', 'key' => 'PRIMARY', 'key_len' => '4', 'ref' => 'const', 'rows' => 1, 'extra' => NULL, ) ]
[ SQL ] update `ob_article` set views=views+1 where id=8976 [ RunTime:0.015161s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `cate` = '威海服務(wù)器/VPS' AND `status` <> -1 LIMIT 1 [ RunTime:0.022179s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 8035, 'extra' => 'Using where', ) ]
[ SQL ] SELECT * FROM `ob_article` WHERE `category_id` = 12 AND `cate` = '威海服務(wù)器/VPS' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.054716s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 8035, 'extra' => 'Using where; Using temporary; Using filesort', ) ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `tags` = '威海Ping' AND `status` <> -1 LIMIT 1 [ RunTime:0.023180s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 8035, 'extra' => 'Using where', ) ]
[ SQL ] SELECT * FROM `ob_article` WHERE `category_id` = 12 AND `tags` = '威海Ping' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.033233s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 8035, 'extra' => 'Using where; Using temporary; Using filesort', ) ]

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Linux開啟ping

Linux操作系統(tǒng)下如何對硬盤進行分區(qū)并掛載分區(qū)（fdisk和mount命令）

Windows Server的IIS和Apache性能

快云VPS/服務(wù)器系統(tǒng)開啟PING 方法

網(wǎng)絡(luò)連通性ping命令詳解

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