Pcap4J：无法加载库“ pcap”

Question

I run an application uses Pcap4J on Windows 10. It worked correct (with Admin privileges).

When I run the same application on Linux (Cent OS 7) I got this error:

java.lang.UnsatisfiedLinkError: Unable to load library 'pcap': Native library (linux-x86-64/libpcap.so) not found in resource path ([file:/tmp/spark-e5c4a3c6-8ee1-4b60-9fc0-941cdc83f521/userFiles-3b9fc272-3010-4467-83cb-50378b87e4aa/my_app.jar])

I tried:

1. Install libcap: yum install libcap-devel
2. Run with root privileges
3. Search libpcap.so file:
   • in libpcap-1.8.1.tar.gz , tcpdump-4.9.0.tar.gz and Pcap4J repo
   • in Linux: find / -name libpcap.so
   • for download in google
   • in jars in .m2 and .ivy2 caches

Answer 1

I found solution.

Instead of developer package (libcap-devel) I should install usual package:

yum install libpcap.x86_64

The name of the package may be different. You can list all avaliable packages by command:

 yum list available | grep libpcap