Dear Centos Users: I installed Centos 7 on my server a few months ago. While using ssh, there is always a strange message "Write failed: Broken pipe”. It forces quit of SSH. It’s really annoying as it happens very often with irregular time interval - from a couple of minutes to a few hours. I have been working using Linux (Red Hat, Fedora and Centos) over 15 years. This didn’t happen for me even under centos 6.6. I have tried the following approaches, but none of them can help. I wonder if it can be solved by reinstall the system again. But it’s time consuming to reinstall a lot of softwares. 1. Login via Mac, Windows, Linux systems from different computers. 2. Modify sshd_config on the server as suggested by many posts: TCPKeepAlive yes ClientAliveInterval 60 3. Modify ~/.ssh/config file on my local computer: Host * ServerAliveInterval 60 4. Login ssh using -Y instead of -X. 5. add ‘unset autologout’ in my .cshrc. 6. I checked IP address with the internet administrator, and it works well. 7. add a file named autologout.csh with ‘set autologout=0’. Do you know a good solution? Thanks! Cheers, Hua ----------------------------- Hua Wang, Ph.D. in Geodesy Department of Surveying Engineering, Guangdong University of Technology, 100 Waihuan Xi Rd., Panyu District, Guangzhou, 510006, China. Tel: +86-13570019257 Email: ehwang at 163.com Homepage: http://homepages.see.leeds.ac.uk/~earhw