Problem brief: extremely slow and unreliable connection using PuTTy while apache server works fine.
I have a VPS with CentOS 6 installed and PuTTY SSH client running on Windows7 64 bit at home. The problem is that PuTTY works extremely slow and connection often drops. Sometimes I have to wait few minutes to get a responce (if I get any at all) thus working process is extremely inconvenient. Same problem also has FTP server vsftpd.
But the apache server (httpd) running on the same VPS shows excelent performance and always responds very quickly. One more strange thing: if any task with long execution time (for example wget or make) has been launched, PuTTy's output is always quick and connection never drops.
Any suggestions? I think about two possible reasons:
- Priority of SSH and SFTP server is low
- Some unknown specifics of VPS
I am not familiar with Linux close enough and would like to hear any suggestions to solve this annoying problem. Also it is interesting if anybody has similar problem.