我正在尝试使用该cp命令并强制覆盖.
我试过了cp -rf /foo/* /bar,但仍然提示我确认每次覆盖.
我无法ssh和rysnc到远程系统.它不断给出此错误消息:
WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!
IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
Someone could be eavesdropping on you right now (man-in-the-middle attack)!
It is also possible that a host key has just been changed.
The fingerprint for the RSA key sent by the remote host is
a3:8f:7c:07:c9:12:d8:aa:cd:c2:ba:b3:27:68:bc:c2.
Please contact your system administrator.
Add correct host key in /root/.ssh/known_hosts to get rid of this message.
Offending RSA key in /root/.ssh/known_hosts:8
RSA host key for xxx.xxx.xxx.xxx has changed …我一直在尝试使用Sendmail和CentOS 6.5上的SES为我的应用程序设置电子邮件通知.根据AWS 文档,我已经使用SES配置了sendmail,
maillog说,
sendmail[29711]: s2QFCjnu027924: to=<abc@edf.com>, delay=00:52:09, xdelay=00:08:00, mailer=relay, pri=210717, relay=email-smtp.us-east-1.amazonaws.com [107.20.142.169], dsn=4.0.0, stat=Deferred: Connection timed out with email-smtp.us-east-1.amazonaws.com
所有邮件都在加入 mailq
# sendmail -v -q
Running /var/spool/mqueue/s2QFueiS001965 (sequence 1 of 21)
<abc@edf.com> Connecting to email-smtp.us-east-1.amazonaws.com port 25 via relay.
^C
另外,我无法telnet到smtp地址,
# telnet email-smtp.us-east-1.amazonaws.com 25
Trying 23.21.252.142...
^C
但是nmap显示端口smtp(25)是开放和监听的,
# nmap -p 25 localhost
Starting Nmap 5.51 ( http://nmap.org ) at 2014-03-26 17:09 CET
Nmap scan report for localhost (127.0.0.1)
Host is up (0.000080s latency).
PORT STATE SERVICE …我的Java程序在Linux平台上运行，并且经常崩溃；在这种情况下，我希望自动进行heapdump。
Java进程在Linux上命中“ OutOfMemory Error”时，是否有人有脚本/方法自动创建堆转储？
多谢您的协助。