Install Libjson-c-dev Ubuntu

Sep 02, 2017 libjson0-dev dependency install-issues #1. Sleepdefic1t opened this issue Sep 2. Sudo apt-get install libjson-c-dev will install the correct frameworks. JSON manipulation library - development files. This library allows you to easily construct JSON objects in C, output them as JSON formatted strings and parse JSON formatted strings back into the C representation of JSON objects. Download libjson-c-dev0.12.1-1.3amd64.deb for 18.04 LTS from Ubuntu Main repository. (very optional) Those wishing to use clamav-milter may wish to install the following sudo apt-get install libmilter1.0.1 libmilter-dev Install the unit testing dependencies. Sudo apt-get install valgrind check check-devel Note: LLVM is also an optional dependency. LLVM will not provide any additional features, but is an alternative method for executing bytecode signatures versus using the built-in bytecode.

Install Libjson-c-dev Ubuntu Mac
Install Libjson-c-dev Ubuntu Download

Below are the steps for installing ClamAV from source on Debian and Ubuntu Linux.

If you want to use ZMap with Redis, you will first need to install hiredis. Then run cmake with -DWITHREDIS=ON. Debian/Ubuntu has packaged hiredis as libhiredis-dev; Fedora and RHEL/CentOS have packaged it as hiredis-devel. Ttyd - Share your terminal over the web. Ttyd is a simple command-line tool for sharing terminal over the web. Built on top of Libwebsockets with libuv for speed; Fully-featured terminal based on Xterm.js with CJK (Chinese, Japanese, Korean) and IME support; Graphical ZMODEM integration with lrzsz support; SSL support based on OpenSSL; Run any custom command with options.

Download libjson0-dev0.11-4ubuntu2amd64.deb for 16.04 LTS from Ubuntu Main repository.

Install prerequisites

Install ClamAV dependencies
1. Install the developer tools
2. Install library dependencies
3. (very optional) Those wishing to use clamav-milter may wish to install the following
Install the unit testing dependencies

Note: LLVM is also an optional dependency. LLVM will not provide any additional features, but is an alternative method for executing bytecode signatures versus using the built-in bytecode interpreter. Limited performance testing between LLVM and the bytecode interpreter did not yield conclusive evidence that one is 'better' than the other. For the sake of simplicity, it is not recommended to install LLVM.

Download the latest stable release

Open a browser and navigate to the ClamAV downloads page
Click clamav-<version>.tar.gz link to download the latest stable release.

Extract the source archive

Configure the build

ClamAV's configure script should detect each of the above dependencies automatically.

Typical `./configure` usage

Once ./configure completes, it will print a summary. Verify that the packages you installed are in fact being detected.

Example configure summary output:

Additional popular `./configure` options

--with-systemdsystemunitdir - Do not install systemd socket files. This option disables systemd support, but will allow you to make install to a user-owned directory without requiring sudo/root privileges:
--sysconfdir - Install the configuration files to /etc instead of /usr/local/etc:
--prefix - Install ClamAV to a directory other than /usr/local/:
- Example 1: Install to a local ./install directory.
- Example 2: Install ClamAV locally on an unprivileged shell account.
--disable-clamav - Don't drop super-user priveleges to run freshclam or clamd as the clamav* user. *Tip: Using this --disable-clamav means that freshclam and clamd will run with root privleges if invoked using sudo. Running clamd or clamscan as root is not recommended. Instead of using this option, you can configure freshclam or clamd to drop to any other user by:
- setting the DatabaseOwner option in freshclam.conf and
- setting the User option in clamd.conf.

Please see the ./configure --help for additional options.

Compile ClamAV

Compile ClamAV with:

Run ClamAV Unit Tests (Optional)

For peace of mind, it can be helpful to run a small suite of unit and system tests.

Run:

All tests should pass.* Output will look something like this:

Notes:

The *.vg.sh tests will be skipped unless you run make check VG=1.
The check7_clamd.hg.sh (helgrind) is presently disabled and will be skipped.
- For details, see: the Git commit

If you have a failure or an error in the unit tests, it could be that you are missing one or more of the prerequisites.

If you are investigating a failure, please do the following:

cd unit_tests

Use less to read the log for the failed test.Example:

To submit a bug report regarding unit text failures, please follow these bug reporting steps.

Install ClamAV

Install ClamAV with:

Tip: If installing to the default or other system-owned directory, you may need to use sudo.

First time set-up

Note: The following instructions assume you used the default install paths (i.e. /usr/local). If you modified the install locations using --prefix or --sysconfdir options, replace /usr/local with your chosen install path.

`freshclam` config

Before you can use freshclam to download updates, you need to create a freshclam config. A sample config is provided for you.

Copy the sample config. You may need to use sudo:
Modify the config file using your favourite text editor. Again, you may need to use sudo.
- At a minimum, remove the Example line so freshclam can use the config.
Take the time to look through the options. You can enable the sample options by deleting the # comment characters.
Some popular options to enable include:
- LogTime
- LogRotate
- NotifyClamd
- DatabaseOwner
Create the database directory. *Tip: You may need to use sudo.

`clamd` config (optional)

You can run clamscan without setting the config options for clamd. However, the clamd scanning daemon allows you to use clamdscan to perform faster a-la-carte scans, allows you to run multi-threaded scans, and allows you to use clamav-milter if you want to use ClamAV as a mail filter if you host an email server.

Additionally, if you are a running modern versions of Linux where the FANOTIFY kernel feature is enabled, clamd has a feature run with On-Access Scanning*. When properly configured, On-Access Scanning can scan files as they are accessed and optionally block access to the file in the event that a signature alerted.

Note: At this time, for On-Access Scanning to work, clamd must run with sudo/root privileges. For more details, please see our documentation on On-Access Scanning.

Copy the sample config. You may need to use sudo:
Modify the config file using your favourite text editor. Again, you may need to use sudo.
- At a minimum, remove the Example line so freshclam can use the config.
- You also need to select a Socket option for clamd so clamdscan and other utilities can communicate with clamd. You must enable one of the following.
  - LocalSocket
  - TCPSocket
Take the time to look through the options. You can enable the sample options by deleting the # comment characters.
Some popular options to enable include:
- LogTime
- LogClean
- LogRotate
- User
- ScanOnAccess
  - OnAccessIncludePath
  - OnAccessExcludePath
  - OnAccessPrevention

Configure SELinux for ClamAV

Certain distributions (notably RedHat variants) when operating with SELinux enabled use the non-standard antivirus_can_scan_system SELinux option instead of clamd_can_scan_system.

At this time, libclamav only sets the clamd_can_scan_system option, so you may need to manually enable antivirus_can_scan_system. If you don't perform this step, freshclam will log something like this when it tests the newly downloaded signature databases:

To allow ClamAV to operate under SELinux, run the following:

Download / Update the signature database

Before you can run a scan, you'll need to download the signature databases. Once again, you may need to run with sudo/root privileges.

If you installed to a location in your system PATH:

If you installed to another location:

Important: It is common on Ubuntu after a fresh install to see the following error the first time you use ClamAV:

You can fix this error by using ldconfig to rebuild the library search path.

Users and on user privileges

If you are running freshclam and clamd as root or with sudo, and you did not explicitely configure with --disable-clamav, you will want to ensure that the DatabaseOwner user specified in freshclam.conf owns the database directory so it can download signature udpates.