Real little but useful tip for CentOs 6.7
Error: Package: systemtap-devel-2.7-2.el6.x86_64 (base)
How to solve ??
Your system is probably configured to exclude the kernel packages. In /etc/yum.repos.d check all files and comment out all the lines that start with exclude=
Few days ago I was working on a old IPCOP Firewall setup: my goal was to connect the local LAN to another LAN in another office in a different location.
In the other site the firewall is a Debian-based (Debian+Firehol) device, and it is behind a NAT.
In asterisk Asterisk 1.8.15-cert5 you can see a lot or errors like that.
rc_avpair_new: unknown attribute 1490026597
Using “Simple C# FTP Class” (see in linkografia) is possible delete recursively dir in ftp server.