Start MongoDB from command line
To start MongoDB from command line, run See MongoDB
Install SSL Certificate on Zimbra mail server
To install SSL certificate for Zimbra Mail Server, login to server, switch to user zimbra Now create file commercial.key, paste
Change Linux user shell
To change shell for a user, run Example I will add a user, if no shell specified, it use sh
Check if you are using 32 or 64 bit Linux
To identify if you are using 32 bit or 64 bit Linux OS, run command arch. You can also use
linux sound
aplay Show Sound Devices
Linux Commands
General arch chsh – Change Linux user shell apropos whois uname chown at lynx setfacl tr System strace lsof lspci
strace: command not found
This is because strace not installed on the server. Install it with yum
commands
Linux Commands strace
strace
strace command is used to trace system calls. This is useful to see what a process is doing. To see
configure: error: can’t find pcap.h
When installing a software from source, i get error To fix this on CentOS 7 server, run
Scan a folder with clamscan
To scan a folder, run -r will scan sub folders too. To Scan a Folder (Only Show Infected) See clamav
clamav
Install clamav on Ubuntu Scan a folder with clamscan Install clamav Antivirus on CentOS 7 How to install ClamAV on