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Understanding Apache's access log
...ny is present, and "-" otherwise.
User-agent is the browser identification string.
The complete(?) list of formatters can be found here. The same section of the documentation also lists other common log formats; readers whose logs don't look quite like this one may find the pattern their Apache co...
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...浏览器将首先查找本地的DNS缓存是否拥有该域名所对应的IP地址。如果有，那么浏览器将尝试直接使用该IP地址访问该网站的内容。如果本地DNS缓存中没有该域名所对应的IP地址，那么它将向DNS发送一个请求，以获得该域名所对应...
How do you discover model attributes in Rails?
...inspect.
irb(main):001:0> User.inspect
=> "User(id: integer, email: string, encrypted_password: string,
reset_password_token: string, reset_password_sent_at: datetime,
remember_created_at: datetime, sign_in_count: integer,
current_sign_in_at: datetime, last_sign_in_at: datetime,
current_s...
How to get a Docker container's IP address from the host
Is there a command I can run to get the container's IP address right from the host after a new container is created?
52 Ans...
How can I detect if the user is on localhost in PHP?
...
You can also use $_SERVER['REMOTE_ADDR'] for which IP address of the client requesting is given by the web server.
$whitelist = array(
'127.0.0.1',
'::1'
);
if(!in_array($_SERVER['REMOTE_ADDR'], $whitelist)){
// not valid
}
...
防挂马：apache禁止访问文件或目录执行权限、禁止运行脚本PHP文件的设置方...
...oyun.cc/*>
Order allow,deny
Deny from all
</Proxy>
2. 禁止某些IP访问/只允许某些IP访问
如果要控制禁止某些非法IP访问，在Directory选项控制：
<Directory "/var/www/web/">
Order allow,deny
Allow from all
Deny from 10.0.0.1 #阻止一个IP
Deny from 19...
Is this a “good enough” random algorithm; why isn't it used if it's faster?
...import java.util.Arrays;
public class Test {
public static void main(String[] args) throws Exception {
QuickRandom qr = new QuickRandom();
int[] frequencies = new int[10];
for (int i = 0; i < 100000; i++) {
frequencies[(int) (qr.random() * 10)]++;
...
Find the PID of a process that uses a port on Windows
...-compatible) one-liner to ease copypaste scenarios:
netstat -aon | Select-String 8080 | ForEach-Object { $_ -replace '\s+', ',' } | ConvertFrom-Csv -Header @('Empty', 'Protocol', 'AddressLocal', 'AddressForeign', 'State', 'PID') | ForEach-Object { $portProcess = Get-Process | Where-Object Id -eq $_...
Convert camelCaseText to Sentence Case Text
How can I convert a string either like 'helloThere' or 'HelloThere' to 'Hello There' in JavaScript?
20 Answers
...
What is the largest Safe UDP Packet Size on the Internet
...
It is true that a typical IPv4 header is 20 bytes, and the UDP header is 8 bytes. However it is possible to include IP options which can increase the size of the IP header to as much as 60 bytes. In addition, sometimes it is necessary for intermedia...