我正在尝试在两个基于 Linux 的系统（一个使用 SLC5，另一个运行 Ubuntu）之间建立常规scp。我似乎能够顺利地在一个方向上复制，但不能在另一个方向上复制。通过从 Ubuntu 复制到 SLC5 机器scp并不总是失败，但似乎会随机挂起。运行scp -v命令总是在同一点挂起：
Executing: program /usr/bin/ssh host feynman.hpc.susx.ac.uk, user
mm613, command scp -v -t ~/snoplus/db/testrelay/ OpenSSH_5.3p1
Debian-3ubuntu7, OpenSSL 0.9.8k 25 Mar 2009 debug1: Reading
configuration data /etc/ssh/ssh_config debug1: Applying options for *
debug1: Connecting to feynman.hpc.susx.ac.uk [139.184.80.19] port 22.
debug1: Connection established. debug1: identity file
/home/mjmottram/.ssh/identity type -1 debug1: identity file
/home/mjmottram/.ssh/id_rsa type -1 debug1: identity file
/home/mjmottram/.ssh/id_dsa type 2 debug1: Checking blacklist file
/usr/share/ssh/blacklist.DSA-1024 debug1: Checking blacklist file
/etc/ssh/blacklist.DSA-1024
有人知道发生了什么事吗？/etc/ssh/blacklist.DSA-1024在任何一台机器上都不存在，有时我能够在出现此错误和命令挂起之前复制多个文件。