HTTP TRACE / TRACK Methods Allowed

1. vi /etc/httpd/conf/httpd.conf

2. Add line:

TraceEnable Off

3.  systemctl restart httpd

SNMP Agent Default Community Name (public)

1. vi /etc/snmp/snmpd.conf

2. Comment line:

#com2sec notConfigUser  default       public

3. systemctl restart snmpd

SSL Medium Strength Cipher Suites Supported (SWEET32)

1. vi /etc/httpd/conf.d/ssl.conf

2. Modify SSLCipherSuite SSLHonorCipherOrder

SSLCipherSuite "EECDH+ECDSA+AESGCM EECDH+aRSA+AESGCM EECDH+ECDSA+SHA384 EECDH+ECDSA+SHA256 EECDH+aRSA+SHA384 EECDH+aRSA+SHA256 EECDH+aRSA+RC4 EECDH EDH+aRSA !RC4 !aNULL !eNULL !LOW !3DES !MD5 !EXP !PSK !SRP !DSS"

SSLHonorCipherOrder on

3. systemctl restart httpd

Linux 空闲自动登出

在 /etc/bashrc 末尾添加 TMOUT=120 （Timeout为2分钟）


参考：
https://unix.stackexchange.com/questions/117467/how-to-permanently-set-environmental-variables