道法自然

用法示例： tcpdump -nn -vvv -X host 192.168.0.138 and port 80 tcpdump host sundown tcpdump host helios and \( hot or ace \) tcpdump ip host ace and not helios tcpdump net ucb-ether tcpdump ’gateway snup and (port ftp or ftp-data)’ tcpdump ip and not net localnet tcpdump ’tcp[tcpflags] & (tcp-syn|tcp-fin) != 0 and not src and dst net localnet’ tcpdump ’tcp port 80 and (((ip[2:2] - ((ip[0]&0xf)<<2)) - ((tcp[12]&0xf0)>>2)) != 0)’ tcpdump ’gateway snup and ip[2:2] > 576’ tcpdump ’ether[0] & 1 = 0 and ip[16] >= 224’ tcpdump ’icmp[icmptype] != icmp-echo and icmp[icmptype] != icmp-echoreply’ 常用参数： −c count 捕获制定数目的包后退出 -nn 不转化IP和端口号 -vvv 输出详细信息 -X 以16进制和ASCII码同时显示包信息 -w 保存为PCAP格式文件 -r 从保存的PCAP文件读取信息

samba_selinux(8)      Samba Selinux Policy documentation      samba_selinux(8) NAME        samba_selinux - Security Enhanced Linux Policy for Samba DESCRIPTION        Security-Enhanced Linux secures the Samba server via flexible mandatory        access control. FILE_CONTEXTS        SELinux requires files to have an extended attribute to define the file        type.   Policy  governs the access daemons have to these files.  If you        want to share files other than home directories, those  files  must  be        labeled samba_share_t.  So if you created a special directory /var/eng,        you would need to label the directory with the chcon tool.         chcon -t samba_share_t /var/eng        To make this ...