When Apache Directory Index is enabled, if you browse to a url that have no index file present, you will see list of all files. This is not good for securiy as hackers can see all files present in the directory. One way to disable this directory listing is create a file with name index.html […]
When running apt update on a Debian server, i get error
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root@shop:~# apt-get update E: The method driver /usr/lib/apt/methods/https could not be found. N: Is the package apt-transport-https installed? root@shop:~# |
To fix the error, run
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apt-get install apt-transport-https ca-certificates |
See apt […]
List Kernel Full details
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boby@hon-pc-01:~ $ uname -a Linux hon-pc-01 4.4.0-53-generic #74-Ubuntu SMP Fri Dec 2 15:59:10 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux boby@hon-pc-01:~ $ |
List Architecture
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boby@hon-pc-01:~ $ uname -m x86_64 boby@hon-pc-01:~ $ |
Show Kernel Version
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boby@hon-pc-01:~ $ uname -r 4.4.0-53-generic boby@hon-pc-01:~ $ |
See Linux Commands […]
Start Nginx
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nginx |
Stop Nginx
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nginx -s stop |
Reload Nginx
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nginx -s reload |
Test Nginx configuration
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nginx -t |
See Nginx […]
Install Requirements CentOS/RHEL/Fedora
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yum install glib2-devel openssl-devel pcre-devel bzip2-devel gzip-devel |
Ubuntu/Debian
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apt-get install libpcre3-dev |
Create nginx user
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useradd -c "Nginx user" -s /bin/false -r -d /var/lib/nginx nginx |
Downoad and insta Nginx You can download latest version of Nginx source code from https://nginx.org/en/download.html To install version 1.19.2, run
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cd /usr/local/src wget https://nginx.org/download/nginx-1.19.2.tar.gz tar xvf nginx-1.19.2.tar.gz cd nginx-1.19.2 ./configure --user=nginx --group=nginx --prefix=/usr/share --sbin-path=/usr/sbin/nginx --conf-path=/etc/nginx/nginx.conf --error-log-path=/var/log/nginx/error.log --http-log-path=/var/log/nginx/access.log --pid-path=/var/log/run/nginx.pid --lock-path=/var/log/lock/subsys/nginx --with-http_ssl_module --with-http_realip_module --with-http_addition_module --with-http_sub_module --with-http_dav_module --with-http_flv_module --with-http_gzip_static_module --with-http_stub_status_module --with-http_mp4_module --with-http_secure_link_module --with-http_v2_module make make install |
Test Nginx To start nginx run
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/usr/sbin/nginx |
Configuration file is at
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/etc/nginx/nginx.conf |
See Nginx […]
A hacked web site got hacked. The site listed on google SERP with text “There are essentially two prescribed drugs which viagra 200mg”. When you visit the site in browser and heck the source, you see everything normal, no text related to viagra. This is because malware on site only show that content to google […]
To lock a Linux User account, run
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usermod -L USER_NAME_HERE |
You can verify the account is locked with command
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passwd --status USER_NAME_HERE |
Example See usermod […]
In VestaCP, each packages have option to specify how many backups it can take. First you need to click on packages, then change number of backups allowed for each package. If backups allowed is more than 0, set it to 0. Users are created with these Packages. For all existing users, you need to manually […]
If your server support both IPv4 and IPv6 and you need to force download a file using IPv4, you can use
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wget -4 URL_HERE |
To force IPv6 connection, use
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wget -6 URL_HERE |
Example
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[root@li2136-233 ~]# wget -4 https://rpms.remirepo.net/enterprise/remi-release-7.rpm --2020-09-22 04:45:30-- https://rpms.remirepo.net/enterprise/remi-release-7.rpm Resolving rpms.remirepo.net (rpms.remirepo.net)... 195.154.241.117 Connecting to rpms.remirepo.net (rpms.remirepo.net)|195.154.241.117|:443... connected. HTTP request sent, awaiting response... 200 OK Length: 20732 (20K) [application/x-rpm] Saving to: ‘remi-release-7.rpm’ 100%[==================================================================================================================================================================>] 20,732 74.2KB/s in 0.3s 2020-09-22 04:45:32 (74.2 KB/s) - ‘remi-release-7.rpm’ saved [20732/20732] [root@li2136-233 ~]# |
from wget help, here are the options See wget […]
When sending email from G Suite email account, email bounce with following error message
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TLS Negotiation failed, the certificate doesn't match the host |
This is because the G Suite Gmail account have Route configured and the SMTP server configured have no valid SSL. Solution You can install a valid SSL on your mail server or disable the TLS checking. To disable TLS checking, […]