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I add this dag in my CentOS-Base.repo,

[dag]                                                                           
name=Dag RPM Repository for Red Hat Enterprise Linux                            
baseurl=http://apt.sw.be/redhat/el$releasever/en/$basearch/dag                  
gpgcheck=1                                                                      
gpgkey=http://dag.wieers.com/rpm/packages/RPM-GPG-KEY.dag.txt                   
enabled=1  

when I install the rrdtool, I get error:

failure: repodata/repomd.xml from dag: [Errno 256] No more mirrors to try.
http://apt.sw.be/redhat/el7/en/x86_64/dag/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: apt.sw.be; Unknown error"

put on hold as off-topic by Jeff Schaller, Mr Shunz, thrig, Networker, andcoz Jan 14 at 12:57

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "Questions describing a problem that can't be reproduced and seemingly went away on its own (or went away when a typo was fixed) are off-topic as they are unlikely to help future readers." – Jeff Schaller, Mr Shunz, thrig, Networker, andcoz
If this question can be reworded to fit the rules in the help center, please edit the question.

  • A bit of digging shows that most of RPMs from the DAG repository eventually moved to RepoForge, which was then declared 'dead' in 2016. There is a website for rrdtool, so maybe you can download the source and build it yourself. – Haxiel Jan 4 at 9:30
  • rrdtool is also part of CentOS7. – jsbillings Jan 6 at 2:04
  • thank you, finally I can install it directly in CentOS7. – 244boy Jan 6 at 4:19

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