Input Modules

Input Modules
Input modules are used to gather messages from various sources. They
interface to message generators. They are generally defined via the
input configuration object.

im3195: RFC3195 Input Module
imbatchreport: Batch report input module
imdocker: Docker Input Module
imdtls: Input Module for DTLS Protocol over UDP
imfile: Text File Input Module
imgssapi: GSSAPI Syslog Input Module
Imhiredis: Redis input plugin
imhttp: http input module
imjournal: Systemd Journal Input Module
imkafka: read from Apache Kafka
imklog: Kernel Log Input Module
imkmsg: /dev/kmsg Log Input Module
immark: Mark Message Input Module
Impcap: network traffic capture
improg: Program integration input module
impstats: Generate Periodic Statistics of Internal Counters
imptcp: Plain TCP Syslog
imrelp: RELP Input Module
imsolaris: Solaris Input Module
imtcp: TCP Syslog Input Module
imtuxedoulog: Tuxedo ULOG input module
imudp: UDP Syslog Input Module
imuxsock: Unix Socket Input Module

See also
Help with configuring/using Rsyslog:

Mailing list - best route for general questions
GitHub: rsyslog source project - detailed questions, reporting issues
that are believed to be bugs with Rsyslog